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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
methyl 4-bromo-6-(tetrahydrofuran-3-yl)nicotinate methyl 4-bromo-6-(tetrahydrofuran-3-yl)nicotinate 2645414-05-5 C11H12BrNO3
2-bromo-4-(2,2-difluorocyclopropyl)pyrimidine 2-bromo-4-(2,2-difluorocyclopropyl)pyrimidine 2645419-79-8 C7H5BrF2N2
4-chloro-2-cyclopropyl-5-(trifluoromethyl)pyrimidine 4-chloro-2-cyclopropyl-5-(trifluoromethyl)pyrimidine 2645413-69-8 C8H6ClF3N2
4-bromo-1-(2-methoxyphenyl)-1H-1,2,3-triazole 4-bromo-1-(2-methoxyphenyl)-1H-1,2,3-triazole 2256748-74-8 C9H8BrN3O
5,5'-bipyrimidine]-2,2'(1H,1'H)-dione 5,5'-bipyrimidine]-2,2'(1H,1'H)-dione 34954-16-0 C8H6N4O2
4-(bicyclo[1.1.1]pentan-1-yl)-2-bromopyridine 4-(bicyclo[1.1.1]pentan-1-yl)-2-bromopyridine 2697155-58-9 C10H10BrN
3-(4-bromo-1H-1,2,3-triazol-1-yl)pyridine 3-(4-bromo-1H-1,2,3-triazol-1-yl)pyridine 2256754-45-5 C7H5BrN4
5-bromo-2-(pyridin-4-yl)oxazole 5-bromo-2-(pyridin-4-yl)oxazole 1391737-89-5 C8H5BrN2O
4-(4-bromo-1H-1,2,3-triazol-1-yl)-2-chloropyridine 4-(4-bromo-1H-1,2,3-triazol-1-yl)-2-chloropyridine 2256754-53-5 C7H4BrClN4
5-bromo-2-(pyrrolidin-1-yl)oxazole 5-bromo-2-(pyrrolidin-1-yl)oxazole 1892888-67-3 C7H9BrN2O
5-(4-bromo-1H-1,2,3-triazol-1-yl)-2-chloropyridine 5-(4-bromo-1H-1,2,3-triazol-1-yl)-2-chloropyridine 2256754-60-4 C7H4BrClN4
2,4-dibromo-6-(difluoromethyl)-3-methoxypyridine 2,4-dibromo-6-(difluoromethyl)-3-methoxypyridine 1806879-17-3 C7H5Br2F2NO
5-bromo-1-(pyrrolidin-3-yl)-1H-1,2,3-triazole 5-bromo-1-(pyrrolidin-3-yl)-1H-1,2,3-triazole 1783711-29-4 C6H9BrN4
5-bromo-4-methoxy-2-methylthiazole 5-bromo-4-methoxy-2-methylthiazole 2768655-17-8 C5H6BrNOS
tert-butyl 4-(6-bromopyridin-2-yl)-3-methylpiperidine-1-carboxylate tert-butyl 4-(6-bromopyridin-2-yl)-3-methylpiperidine-1-carboxylate 2806720-00-1 C16H23BrN2O2
2-(5-bromopyrimidin-2-yl)tetrahydro-4H-pyran-4-one 2-(5-bromopyrimidin-2-yl)tetrahydro-4H-pyran-4-one 2358725-17-2 C9H9BrN2O2
2-(4-hydroxypyrimidin-2-yl)tetrahydro-4H-pyran-4-one 2-(4-hydroxypyrimidin-2-yl)tetrahydro-4H-pyran-4-one 2806721-62-8 C9H10N2O3
3-(4-aminopyridin-2-yl)tetrahydro-4H-pyran-4-one 3-(4-aminopyridin-2-yl)tetrahydro-4H-pyran-4-one 2806729-30-4 C10H12N2O2
3-(5-aminopyrimidin-2-yl)tetrahydro-4H-pyran-4-one 3-(5-aminopyrimidin-2-yl)tetrahydro-4H-pyran-4-one 2806729-33-7 C9H11N3O2
3-(2-aminopyrimidin-4-yl)tetrahydro-4H-pyran-4-one 3-(2-aminopyrimidin-4-yl)tetrahydro-4H-pyran-4-one 2806721-18-4 C9H11N3O2
3-(6-bromopyrimidin-4-yl)tetrahydro-4H-pyran-4-one 3-(6-bromopyrimidin-4-yl)tetrahydro-4H-pyran-4-one 2806729-03-1 C9H9BrN2O2
2-(thiazol-5-yl)aniline 2-(thiazol-5-yl)aniline 1883691-63-1 C9H8N2S
6-bromo-4H-chromeno[4,3-c]isoxazole 6-bromo-4H-chromeno[4,3-c]isoxazole 2821813-63-0 C10H6BrNO2
tert-butyl 4-(4-chloropyrimidin-2-yl)piperidine-1-carboxylate tert-butyl 4-(4-chloropyrimidin-2-yl)piperidine-1-carboxylate 1105187-35-6 C14H20ClN3O2
2-chloro-4-cyclopropylpyrido[2,3-d]pyrimidine 2-chloro-4-cyclopropylpyrido[2,3-d]pyrimidine 2891512-84-6 C10H8ClN3
3-bromo-6-(tetrahydro-2H-pyran-3-yl)-2-(trifluoromethyl)pyridine 3-bromo-6-(tetrahydro-2H-pyran-3-yl)-2-(trifluoromethyl)pyridine 2891520-43-5 C11H11BrF3NO
3-bromo-6-(piperidin-3-yl)-2-(trifluoromethyl)pyridine 3-bromo-6-(piperidin-3-yl)-2-(trifluoromethyl)pyridine 2891520-46-8 C11H12BrF3N2
6-bromo-3-(tetrahydro-2H-pyran-3-yl)-2-(trifluoromethyl)pyridine 6-bromo-3-(tetrahydro-2H-pyran-3-yl)-2-(trifluoromethyl)pyridine 2891518-97-9 C11H11BrF3NO
tert-butyl 3-(5-bromo-4-hydroxypyridin-2-yl)pyrrolidine-1-carboxylate tert-butyl 3-(5-bromo-4-hydroxypyridin-2-yl)pyrrolidine-1-carboxylate 2891511-92-3 C14H19BrN2O3
5-bromo-2-(tetrahydrofuran-3-yl)pyridin-4-amine 5-bromo-2-(tetrahydrofuran-3-yl)pyridin-4-amine 2721118-33-6 C9H11BrN2O
6-bromo-1-cyclopropylpyridin-2(1H)-one 6-bromo-1-cyclopropylpyridin-2(1H)-one 2891520-52-6 C8H8BrNO
tert-butyl 5-cyclopropyl-2,3-dihydro-4H-1,4-oxazine-4-carboxylate tert-butyl 5-cyclopropyl-2,3-dihydro-4H-1,4-oxazine-4-carboxylate 2891520-56-0 C12H19NO3
tert-butyl 3,5-dibromo-4H-1,4-oxazine-4-carboxylate tert-butyl 3,5-dibromo-4H-1,4-oxazine-4-carboxylate 2891518-31-1 C9H11Br2NO3
tert-butyl 3-(2-bromopyridin-4-yl)morpholine-4-carboxylate tert-butyl 3-(2-bromopyridin-4-yl)morpholine-4-carboxylate 2891510-96-4 C14H19BrN2O3
tert-butyl 3-(2-aminopyrimidin-4-yl)morpholine-4-carboxylate tert-butyl 3-(2-aminopyrimidin-4-yl)morpholine-4-carboxylate 2891518-21-9 C13H20N4O3
8-bromo-6-cyclopropylimidazo[1,2-b]pyridazine 8-bromo-6-cyclopropylimidazo[1,2-b]pyridazine
2-chloro-4-(((4-fluoropyridin-2-yl)oxy)methyl)pyrimidine 2-chloro-4-(((4-fluoropyridin-2-yl)oxy)methyl)pyrimidine 2973762-83-1 C10H7ClFN3O
2-bromo-3-iodopyridin-4-ol 2-bromo-3-iodopyridin-4-ol 2294947-51-4 C5H3BrINO
4-bromo-3-cyclopropyl-2-(trifluoromethyl)pyridine 4-bromo-3-cyclopropyl-2-(trifluoromethyl)pyridine 2294948-03-9 C9H7BrF3N
6-cyclopropyl-5-methoxypyridin-3-amine 6-cyclopropyl-5-methoxypyridin-3-amine 2294950-14-2 C9H12N2O
6-cyclopentyl-5-methoxypyridin-3-amine 6-cyclopentyl-5-methoxypyridin-3-amine 2294948-60-8 C11H16N2O
2-(2,4-dibromo-1H-imidazol-1-yl)pyridine 2-(2,4-dibromo-1H-imidazol-1-yl)pyridine 2294957-45-0 C8H5Br2N3
3-(5-bromo-2-methyl-1H-imidazol-1-yl)pyridine 3-(5-bromo-2-methyl-1H-imidazol-1-yl)pyridine 2294949-80-5 C9H8BrN3
4-(5-bromo-2-methoxy-1H-imidazol-1-yl)pyridine 4-(5-bromo-2-methoxy-1H-imidazol-1-yl)pyridine 2294948-85-7 C9H8BrN3O
5-bromo-1-(pyrimidin-2-yl)-1H-imidazol-2-amine 5-bromo-1-(pyrimidin-2-yl)-1H-imidazol-2-amine 2294950-00-6 C7H6BrN5
3-bromo-2-(sec-butyl)thiophene 3-bromo-2-(sec-butyl)thiophene 2363787-40-8 C8H11BrS
1-cyclopentyl-5-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 1-cyclopentyl-5-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2364586-45-6 C13H21BFN3O2
5-bromo-1-cyclohexyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 5-bromo-1-cyclohexyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2364586-12-7 C14H23BBrN3O2
2-(oxetan-3-yloxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(oxetan-3-yloxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2353522-90-2 C14H20BNO4
2-(oxetan-3-yloxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2-(oxetan-3-yloxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2364585-72-6 C13H19BN2O4
2-(2-cyclopropylthiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(2-cyclopropylthiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2364586-15-0 C13H19BO2S
1-cyclopropyl-5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 1-cyclopropyl-5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2460672-80-2 C12H20BN3O2
5-ethyl-1-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 5-ethyl-1-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2460671-49-0 C13H24BN3O2
3-(3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)pyridazine 3-(3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)pyridazine 2460671-52-5 C14H19BN4O2
(2-methyl-6-(thiazol-2-yl)pyridin-3-yl)boronic acid (2-methyl-6-(thiazol-2-yl)pyridin-3-yl)boronic acid 2710290-33-6 C9H9BN2O2S
2-(2,2-difluorocyclopropyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(2,2-difluorocyclopropyl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710293-42-6 C14H18BF2NO2
2,4-difluoro-6-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2,4-difluoro-6-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710293-66-4 C12H16BF2NO2
2-(2,2-difluorocyclopropyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2-(2,2-difluorocyclopropyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2710293-81-3 C13H17BF2N2O2
4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(trimethylsilyl)-1H-1,2,3-triazole 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(trimethylsilyl)-1H-1,2,3-triazole 2710293-87-9 C11H22BN3O2Si
2-(tert-butyl)-4-fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(tert-butyl)-4-fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-03-2 C15H23BFNO2
7-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrido[2,3-d]pyridazin-8(7H)-one 7-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrido[2,3-d]pyridazin-8(7H)-one 2710294-08-7 C14H18BN3O3
5-(oxetan-2-ylmethoxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 5-(oxetan-2-ylmethoxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-19-0 C15H22BNO4
7-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyrimidine 7-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyrimidine 2710294-41-8 C13H18BN3O2
4-fluoro-2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 4-fluoro-2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-49-6 C12H17BFNO2
2-(bicyclo[1.1.1]pentan-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2-(bicyclo[1.1.1]pentan-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2710295-82-0 C15H21BN2O2
2-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxazole 2-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxazole 2710296-10-7 C14H17BN2O3
2-(pyridin-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2-(pyridin-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2710297-57-5 C14H17BN2O3
2-(difluoromethyl)-5-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(difluoromethyl)-5-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2711075-23-7 C13H18BF2NO2
1-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 1-phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2710298-30-7 C14H18BN3O2
2-(2-fluorophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2-(2-fluorophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2710298-65-8 C14H17BFN3O2
4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(m-tolyl)-2H-1,2,3-triazole 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(m-tolyl)-2H-1,2,3-triazole 2710298-70-5 C15H20BN3O2
4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazol-2-yl)thiazole 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazol-2-yl)thiazole 2710298-84-1 C11H15BN4O2S
2-(furan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2-(furan-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2710298-89-6 C12H16BN3O3
6-ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 6-ethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
6-(tert-butyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 6-(tert-butyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
3-isopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3-isopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
3-(tetrahydrofuran-3-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3-(tetrahydrofuran-3-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine
tert-butyl 2-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)morpholine-4-carboxylate tert-butyl 2-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)morpholine-4-carboxylate
3-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbonitrile 3-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carbonitrile
tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)morpholine-4-carboxylate tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)morpholine-4-carboxylate
tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)morpholine-4-carboxylate tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)morpholine-4-carboxylate
4-cyclopropyl-2-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 4-cyclopropyl-2-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole
4-cyclopropyl-2-(tetrahydrofuran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 4-cyclopropyl-2-(tetrahydrofuran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole
tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole-1-carboxylate tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole-1-carboxylate
5-fluoro-4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 5-fluoro-4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine
tert-butyl 2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-4H-1,4-oxazine-4-carboxylate tert-butyl 2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-4H-1,4-oxazine-4-carboxylate
2-chloro-4-fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-chloro-4-fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine
6-chloro-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-b]pyridazine 6-chloro-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-b]pyridazine
2-methoxy-3-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-methoxy-3-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2304812-83-5 C17H26BNO4
2-methoxy-3-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-methoxy-3-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2304817-64-7 C15H22BNO4
N,N-dimethyl-1-(pyridin-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-2-amine N,N-dimethyl-1-(pyridin-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-2-amine 2304817-94-3 C16H23BN4O2
(2-fluoro-6-(methoxy-d3)pyridin-4-yl-3,5-d2)boronic acid (2-fluoro-6-(methoxy-d3)pyridin-4-yl-3,5-d2)boronic acid 2368221-16-1 C6H2BD5FNO3
(5-fluoro-6-(methyl-d3)pyridin-3-yl-2,4-d2)boronic acid (5-fluoro-6-(methyl-d3)pyridin-3-yl-2,4-d2)boronic acid 2368221-21-8 C6H2BD5FNO2
(2-(pyrrolidin-1-yl-d8)pyrimidin-5-yl-4,6-d2)boronic acid (2-(pyrrolidin-1-yl-d8)pyrimidin-5-yl-4,6-d2)boronic acid 2368221-37-6 C8H2BD10N3O2
(2,6-bis(methyl-d3)pyridin-3-yl-4,5-d2)boronic acid (2,6-bis(methyl-d3)pyridin-3-yl-4,5-d2)boronic acid 2710290-90-5 C7H2BD8NO2
5-bromooxazole 5-bromooxazole 1060812-80-7 C3H2BrNO
1-(2-fluorobenzyl)-5-oxopyrrolidine-3-carboxylic acid(SALTDATA: FREE) 1-(2-fluorobenzyl)-5-oxopyrrolidine-3-carboxylic acid(SALTDATA: FREE) 845546-24-9 C12H12FNO3
1-(3-aminopropyl)-2,5-pyrrolidinedione(SALTDATA: HCl) 1-(3-aminopropyl)-2,5-pyrrolidinedione(SALTDATA: HCl) 54052-99-2 C7H12N2O2
1-benzyl-5-bromo-1H-imidazole 1-benzyl-5-bromo-1H-imidazole 132430-59-2 C10H9BrN2
2,4,5-triMethyl-4,5-dihydro-1H-iMidazole-4,5-diol 2,4,5-triMethyl-4,5-dihydro-1H-iMidazole-4,5-diol 740025-56-3 C6H12N2O2
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