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Heterocyclic Compounds

Heterocyclic compounds are a class of compounds that consist of carbon atoms and non-carbon atoms altogether forming a cyclic skeletal structure. These non-carbon atoms are collectively referred to as a heteroatom. The common heteroatoms include nitrogen, oxygen, and sulfur. Lactones, lactams, cyclic ethers that we’ve already learned are heterocyclic compounds. With similar properties of congeneric open-chain compounds, they will be discussed in corresponding chapters. This chapter will mainly discuss heterocyclic compounds with relatively stable ring system and with a certain degree of aromaticity, also known as aromatic heterocyclic compound.

There are many kinds and a large number of heterocyclic compounds widely distributed in nature. Many natural heterocyclic compounds in animals and plants play an important physiological role in the body. For example, heterocyclic structure exists in chlorophyll in plants, hemoglobin in animal blood, alkaloids and glycosides as the active ingredient in herbs, some antibiotics and vitamins, certain composition of amino acids in protein and bases in nucleotide. About half of the existing medicines have heterocyclic structures. Thus, heterocyclic compounds play an important role in organic compounds especially in organic medicines.

The most common and also the most important heterocyclic compounds are that with five-membered or six-membered heterocyclic ring and their fused heterocyclic compounds. Therefore, according to the size of the ring, heterocyclic compounds can be divided into five-membered compounds and six-membered heterocyclic compounds. E.g., furan, thiophene, pyrrole, imidazole, triazole and their fused heterocyclic compounds, indole, benzimidazole and diphenylene-oxide are all five-membered heterocyclic compounds, while pyridine, pyrimidine and their fused heterocyclic compounds, quinoline and quinazoline are all six-membered heterocyclic compounds.

According to the number of hetero atoms, five-membered compounds and six-membered heterocyclic compounds can be divided into one-hetero-atom-containing heterocyclic compounds and two-hetero-atom-containing and several-hetero-atom-containing heterocyclic compounds. E.g., furan, thiophene, pyridine, indole, quinoline, dibenzofuran, etc. are one-hetero-atom-containing heterocyclic compounds; imidazole, pyrimidine, benzimidazole, quinazoline, etc. are two-hetero-atom-containing heterocyclic compounds; purine, comprising more than two hetero atoms, is a several-hetero-atom-containing heterocyclic compound. According to the form of the ring in the molecule, heterocyclic compounds can be divided into single-heterocyclic compounds and fused heterocyclic compounds. E.g., furan, pyridine, pyrimidine, imidazole, etc. are single-heterocyclic compounds and indole, quinoline, dibenzofuran, purines, etc. are fused heterocyclic compounds.

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Structure Chemical Name CAS MF
1-ethyl-5-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 1-ethyl-5-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2460671-71-8 C13H24BN3O2
4-(3-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrimidine 4-(3-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrimidine 2460672-81-3 C19H23BN2O2
4-fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine 4-fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine 2710289-79-3 C12H14BF4NO2
3-(6-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)benzonitrile 3-(6-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)benzonitrile 2710289-87-3 C18H18BFN2O2
(2-methyl-6-(tetrahydrofuran-3-yl)pyridin-3-yl)boronic acid (2-methyl-6-(tetrahydrofuran-3-yl)pyridin-3-yl)boronic acid 2710290-22-3 C10H14BNO3
6-ethyl-2,4-difluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 6-ethyl-2,4-difluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710293-68-6 C13H18BF2NO2
6-cyclobutyl-2,4-difluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 6-cyclobutyl-2,4-difluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710293-73-3 C15H20BF2NO2
1-(4-methoxybenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 1-(4-methoxybenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2710293-89-1
3-((tetrahydrofuran-2-yl)methoxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 3-((tetrahydrofuran-2-yl)methoxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-10-1 C16H24BNO4
5-((tetrahydro-2H-pyran-2-yl)methoxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 5-((tetrahydro-2H-pyran-2-yl)methoxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-21-4 C17H26BNO4
2-(3-methylbicyclo[1.1.1]pentan-1-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole 2-(3-methylbicyclo[1.1.1]pentan-1-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole 2710295-84-2 C15H22BNO2S
2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxazole 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxazole 2710296-12-9 C14H17BN2O3
2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2710297-53-1 C10H16BNO4
2-(pyrimidin-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2-(pyrimidin-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2710297-60-0 C13H16BN3O3
1-isobutyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 1-isobutyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2710298-13-6 C12H22BN3O2
2-cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2-cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2710298-58-9 C13H22BN3O2
2-(2-methoxyphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2-(2-methoxyphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2710298-72-7 C15H20BN3O3
3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazol-2-yl)pyridine 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazol-2-yl)pyridine 2710298-76-1 C13H17BN4O2
4-(Thiazol-2-yl)pyridine-3-boronic acid pinacol ester 4-(Thiazol-2-yl)pyridine-3-boronic acid pinacol ester 2223036-93-7 C14H17BN2O2S
5-(4-Fluoro-2-methylphenyl)pyridine-2-boronic acid pinacol ester 5-(4-Fluoro-2-methylphenyl)pyridine-2-boronic acid pinacol ester 1402227-28-4 C18H21BFNO2
2-Amino-4-(sec-butyl)pyrimidine-5-boronic acid pinacol ester 2-Amino-4-(sec-butyl)pyrimidine-5-boronic acid pinacol ester 2223005-54-5 C14H24BN3O2
2-Amino-4-(3-furyl)pyrimidine-5-boronic acid pinacol ester 2-Amino-4-(3-furyl)pyrimidine-5-boronic acid pinacol ester 2223055-52-3 C14H18BN3O3
2-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2223049-15-6 C14H20BNO3
4,4,5,5-tetramethyl-2-(5-(tetrahydrofuran-3-yl)thiophen-2-yl)-1,3,2-dioxaborolane 4,4,5,5-tetramethyl-2-(5-(tetrahydrofuran-3-yl)thiophen-2-yl)-1,3,2-dioxaborolane 2222996-66-7 C14H21BO3S
2-(oxetan-3-yl)-6-(tetrahydrofuran-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(oxetan-3-yl)-6-(tetrahydrofuran-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2223005-63-6 C18H26BNO4
tert-butyl 2-(6-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)morpholine-4-carboxylate tert-butyl 2-(6-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)morpholine-4-carboxylate 2223006-14-0 C20H30BFN2O5
tert-butyl 2-(2-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)morpholine-4-carboxylate tert-butyl 2-(2-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)morpholine-4-carboxylate 2223009-46-7 C21H31BFNO5
tert-butyl 2-(2-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)morpholine-4-carboxylate tert-butyl 2-(2-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)morpholine-4-carboxylate 2223005-31-8 C24H36BNO5
2-(2-cyclopropyl-5-(tetrahydrofuran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(2-cyclopropyl-5-(tetrahydrofuran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2223009-92-3 C19H27BO3
2-(3-cyclopropyl-5-(tetrahydrofuran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(3-cyclopropyl-5-(tetrahydrofuran-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2222997-12-6 C19H27BO3
4-(1,3-dioxan-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 4-(1,3-dioxan-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2241866-36-2 C15H22BNO4
2-bromo-6-(1,3-dioxan-5-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-bromo-6-(1,3-dioxan-5-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2241866-41-9 C15H21BBrNO4
6-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 6-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
6-(tetrahydrofuran-2-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 6-(tetrahydrofuran-2-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
6-(tetrahydro-2H-pyran-4-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 6-(tetrahydro-2H-pyran-4-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
3-(tetrahydro-2H-pyran-4-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3-(tetrahydro-2H-pyran-4-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
tert-butyl 5-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-4H-1,4-oxazine-4-carboxylate tert-butyl 5-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-4H-1,4-oxazine-4-carboxylate
tert-butyl 3-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)morpholine-4-carboxylate tert-butyl 3-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)morpholine-4-carboxylate
4-isopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-1,4-oxazine 4-isopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-1,4-oxazine
4-methyl-2-(tetrahydrofuran-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 4-methyl-2-(tetrahydrofuran-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole
1-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydropyridine 1-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydropyridine
tert-butyl 2-oxo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-1(2H)-carboxylate tert-butyl 2-oxo-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-1(2H)-carboxylate
tert-butyl 2,3-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-4H-1,4-oxazine-4-carboxylate tert-butyl 2,3-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-4H-1,4-oxazine-4-carboxylate
2-methoxy-3-(tetrahydro-2H-pyran-4-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-methoxy-3-(tetrahydro-2H-pyran-4-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2304818-01-5 C17H26BNO4
3-cyclopentyl-2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 3-cyclopentyl-2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2304817-02-3 C17H26BNO3
6,6'-dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2'-bipyridine 6,6'-dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2'-bipyridine 2304817-09-0 C16H17BCl2N2O2
2-(azetidin-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(azetidin-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 1352817-27-6 C14H21BN2O2
5-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 5-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2364586-66-1 C11H18BN3O2
(2-fluoro-6-(methoxy-d3)pyridin-3-yl-4,5-d2)boronic acid (2-fluoro-6-(methoxy-d3)pyridin-3-yl-4,5-d2)boronic acid 2368221-18-3 C6H2BD5FNO3
(2-(methoxy-d3)-6-(methyl-d3)pyridin-4-yl-3,5-d2)boronic acid (2-(methoxy-d3)-6-(methyl-d3)pyridin-4-yl-3,5-d2)boronic acid 2368221-23-0 C7H2BD8NO3
(5-fluoropyridin-3-yl-4,6-d2)boronic acid (5-fluoropyridin-3-yl-4,6-d2)boronic acid
1-(3-CHLOROPHENYL)IMIDAZOLE 1-(3-CHLOROPHENYL)IMIDAZOLE 51581-52-3 C9H7ClN2
1H-INDAZOLE-5-CARBALDEHYDE 1H-INDAZOLE-5-CARBALDEHYDE 253801-04-6 C8H6N2O
L-Tyr-NCA L-Tyr-NCA 3415-08-5 C10H9NO4
4-(Tetrahydro-2H-pyran-3-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridine 4-(Tetrahydro-2H-pyran-3-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridine 2223006-45-7 C17H23BF3NO3
2-Fluoro-4-isopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-Fluoro-4-isopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2223054-03-1 C14H21BFNO2
6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2'-bipyridine-3',4',5',6'-d4 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2'-bipyridine-3',4',5',6'-d4 2241867-10-5 C16H15BD4N2O2
tert-Butyl 4-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridin-4-yl)piperidine-1-carboxylate tert-Butyl 4-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridin-4-yl)piperidine-1-carboxylate 2223044-90-2 C22H32BF3N2O4
1-(6-Chloro-3-pyridyl)-1H-pyrazole-4-boronic acid pinacol ester 1-(6-Chloro-3-pyridyl)-1H-pyrazole-4-boronic acid pinacol ester 1402174-46-2 C14H17BClN3O2
1-(5-Cyclopropyl-3-pyridyl)-1H-imidazole-4-boronic acid pinacol ester 1-(5-Cyclopropyl-3-pyridyl)-1H-imidazole-4-boronic acid pinacol ester 1402226-83-8 C17H22BN3O2
3-Methyl-1-(5-cyclopropylpyridin-3-yl)-1H-pyrazole-4-boronic acid pinacol ester 3-Methyl-1-(5-cyclopropylpyridin-3-yl)-1H-pyrazole-4-boronic acid pinacol ester 2223054-41-7 C18H24BN3O2
1-(PYRIMIDIN-2-YL)-1H-PYRAZOL-3-YLBORONIC ACID PINACOL ESTER 1-(PYRIMIDIN-2-YL)-1H-PYRAZOL-3-YLBORONIC ACID PINACOL ESTER 2223037-62-3 C13H17BN4O2
5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-1-yl)pyrimidine 5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-1-yl)pyrimidine 2223045-28-9 C13H17BN4O2
1-(3-Bromo-4-pyridyl)pyrazole-4-boronic acid pinacol ester 1-(3-Bromo-4-pyridyl)pyrazole-4-boronic acid pinacol ester 1402233-79-7 C14H17BBrN3O2
1-(ISO-BUTYL)-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-1,2,3-TRIAZOLE 1-(ISO-BUTYL)-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-1,2,3-TRIAZOLE 2223039-03-8 C12H22BN3O2
1-(OXOLAN-2-YL)-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-1,2,3-TRIAZOLE 1-(OXOLAN-2-YL)-4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-1,2,3-TRIAZOLE 2223005-95-4 C12H20BN3O3
2-(5-(1,4-dioxan-2-yl)thiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(5-(1,4-dioxan-2-yl)thiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2222995-75-5 C14H21BO4S
4-Chloro-2-(cyclopentyl)pyrimidine-5-boronic acid pinacol ester 4-Chloro-2-(cyclopentyl)pyrimidine-5-boronic acid pinacol ester 2223043-96-5 C15H22BClN2O2
4-Chloro-2-(2-methylpiperidin-1-yl)pyrimidine-5-boronic acid pinacol ester 4-Chloro-2-(2-methylpiperidin-1-yl)pyrimidine-5-boronic acid pinacol ester 2223006-04-8 C16H25BClN3O2
4-Chloro-2-(4-methyl-1H-pyrazol-1-yl)pyrimidine-5-boronic acid pinacol ester 4-Chloro-2-(4-methyl-1H-pyrazol-1-yl)pyrimidine-5-boronic acid pinacol ester 2223055-85-2 C14H18BClN4O2
6-Chloro-5'-bromo-2,2'-bipyridine 6-Chloro-5'-bromo-2,2'-bipyridine 1185307-75-8 C10H6BrClN2
6-Chloro-4'-bromo-2,2'-bipyridine 6-Chloro-4'-bromo-2,2'-bipyridine 1185312-34-8 C10H6BrClN2
5,6'-Dibromo-2-(2'-pyridyl)pyrazine 5,6'-Dibromo-2-(2'-pyridyl)pyrazine 1185311-91-4
2-Chloro-4-amino-6-(6'-bromo-2'-pyridyl)pyrimidine 2-Chloro-4-amino-6-(6'-bromo-2'-pyridyl)pyrimidine 1185306-19-7 C9H6BrClN4
3,5-Dibromo-2-(2-methylpiperidin-1-yl)pyridine 3,5-Dibromo-2-(2-methylpiperidin-1-yl)pyridine 1289214-85-2 C11H14Br2N2
6-Chloro-2-[4'-amino-6'-(iso-propyl)-2'-pyridyl]pyrazine 6-Chloro-2-[4'-amino-6'-(iso-propyl)-2'-pyridyl]pyrazine 1185314-25-3 C12H13ClN4
6-Chloro-2-(4'-hydroxymethyl-2'-pyridyl)pyrazine 6-Chloro-2-(4'-hydroxymethyl-2'-pyridyl)pyrazine 1185319-11-2 C10H8ClN3O
6-Methoxy-3-(6'-chloro-2'-pyrazinyl)pyridazine 6-Methoxy-3-(6'-chloro-2'-pyrazinyl)pyridazine 1185319-32-7 C9H7ClN4O
6-Chloro-6'-cyano-2,2'-bipyridine 6-Chloro-6'-cyano-2,2'-bipyridine 1185317-66-1 C11H6ClN3
4-Hydroxy-6'-cyano-2,2'-bipyridine 4-Hydroxy-6'-cyano-2,2'-bipyridine 1185316-60-2 C11H7N3O
5-Amino-6-bromo-2-(6'-cyano-2'-pyridyl)pyrazine 5-Amino-6-bromo-2-(6'-cyano-2'-pyridyl)pyrazine 1185317-76-3 C10H6BrN5
3-Chloro-6-(6'-cyano-2'-pyridyl)pyridazine 3-Chloro-6-(6'-cyano-2'-pyridyl)pyridazine 1185306-77-7 C10H5ClN4
2-Amino-4-methyl-6-(6'-cyano-2'-pyridyl)pyrimidine 2-Amino-4-methyl-6-(6'-cyano-2'-pyridyl)pyrimidine 1185311-87-8 C11H9N5
2,4-Diamino-6-(6'-cyano-2'-pyridyl)pyrimidine 2,4-Diamino-6-(6'-cyano-2'-pyridyl)pyrimidine 1185318-04-0 C10H8N6
4-Hydroxy-5'-cyano-2,2'-bipyridine 4-Hydroxy-5'-cyano-2,2'-bipyridine 1185318-43-7 C11H7N3O
5-Bromo-2-(5'-cyano-2'-pyridyl)thiazole 5-Bromo-2-(5'-cyano-2'-pyridyl)thiazole 1185311-36-7 C9H4BrN3S
6-Amino-3-(5'-cyano-2'-pyridyl)pyridazine 6-Amino-3-(5'-cyano-2'-pyridyl)pyridazine 1185311-11-8 C10H7N5
6-Amino-2-methylthio-4-(5'-cyano-2'-pyridyl)pyrimidine 6-Amino-2-methylthio-4-(5'-cyano-2'-pyridyl)pyrimidine 1185318-48-2 C11H9N5S
2,6-Dichloro-4-(5'-cyano-2'-pyridyl)pyrimidine 2,6-Dichloro-4-(5'-cyano-2'-pyridyl)pyrimidine 1185318-36-8 C10H4Cl2N4
5-Bromo-2-hydroxy-4-ethylpyrimidine 5-Bromo-2-hydroxy-4-ethylpyrimidine 1381938-38-0 C6H7BrN2O
5-Amino-4-(2-tolyl)thiazole 5-Amino-4-(2-tolyl)thiazole 1247523-40-5
5-Amino-4-(3-trifluoromethylphenyl)thiazole 5-Amino-4-(3-trifluoromethylphenyl)thiazole 1248954-10-0 C10H7F3N2S
5-Bromo-4-(4-pyridyl)thiazole 5-Bromo-4-(4-pyridyl)thiazole 1243839-04-4 C8H5BrN2S
4-Amino-5-(n-propyl)thiazole 4-Amino-5-(n-propyl)thiazole 1374664-24-0 C6H10N2S
4-Bromo-5-(cyclohexyl)thiazole 4-Bromo-5-(cyclohexyl)thiazole 1264036-58-9 C9H12BrNS
4-Bromo-5-(2-fluorophenyl)thiazole 4-Bromo-5-(2-fluorophenyl)thiazole 1264035-91-7 C9H5BrFNS
4-Amino-5-(4-fluorophenyl)thiazole 4-Amino-5-(4-fluorophenyl)thiazole 1368662-61-6 C9H7FN2S
tert-butyl 3-(5-bromofuran-2-yl)pyrrolidine-1-carboxylate tert-butyl 3-(5-bromofuran-2-yl)pyrrolidine-1-carboxylate 2167183-35-7 C13H18BrNO3
2,4-Dibomo-5-pyrrolidinothiazole 2,4-Dibomo-5-pyrrolidinothiazole 1353854-14-4 C7H8Br2N2S
4-Bromo-5-(3-thienyl)thiazole 4-Bromo-5-(3-thienyl)thiazole 1374664-97-7 C7H4BrNS2
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