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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
tert-butyl 2-(2-methylpyridin-4-yl)morpholine-4-carboxylate tert-butyl 2-(2-methylpyridin-4-yl)morpholine-4-carboxylate 2952896-36-3 C15H22N2O3
2-chloro-4-(((2-fluoropyridin-4-yl)oxy)methyl)pyrimidine 2-chloro-4-(((2-fluoropyridin-4-yl)oxy)methyl)pyrimidine 2973762-65-9 C10H7ClFN3O
4-fluoro-3-iodopyridin-2-ol 4-fluoro-3-iodopyridin-2-ol 1806576-99-7 C5H3FINO
3-bromo-4-cyclopropyl-2-(trifluoromethyl)pyridine 3-bromo-4-cyclopropyl-2-(trifluoromethyl)pyridine 2294947-12-7 C9H7BrF3N
6-methoxy-5-(tetrahydrofuran-3-yl)pyridin-3-amine 6-methoxy-5-(tetrahydrofuran-3-yl)pyridin-3-amine 2294949-91-8 C10H14N2O2
5-bromo-2-cyclopentyl-3-methoxypyridine 5-bromo-2-cyclopentyl-3-methoxypyridine 2294947-89-8 C11H14BrNO
3-(2,4-dibromo-1H-imidazol-1-yl)pyridine 3-(2,4-dibromo-1H-imidazol-1-yl)pyridine 2294950-34-6 C8H5Br2N3
2-(2,5-dibromo-1H-imidazol-1-yl)pyridine 2-(2,5-dibromo-1H-imidazol-1-yl)pyridine 2294957-72-3 C8H5Br2N3
5-bromo-1-(pyridin-3-yl)-1H-imidazol-2-amine 5-bromo-1-(pyridin-3-yl)-1H-imidazol-2-amine 2294956-93-5 C8H7BrN4
4-fluoro-6-methoxy-5-methylpyridin-3-amine 4-fluoro-6-methoxy-5-methylpyridin-3-amine 2294943-88-5 C7H9FN2O
5-bromo-1-cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 5-bromo-1-cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2364586-03-6 C13H21BBrN3O2
5-fluoro-1-(tetrahydrofuran-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 5-fluoro-1-(tetrahydrofuran-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2364572-89-2 C12H19BFN3O3
2-(oxetan-3-yloxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(oxetan-3-yloxy)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2364585-56-6 C14H20BNO4
2-(2-isopropylthiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(2-isopropylthiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2364585-93-1 C13H21BO2S
1-cyclopropyl-5-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 1-cyclopropyl-5-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole 2460672-68-6 C14H24BN3O2
4-(3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)pyrimidine 4-(3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)pyrimidine 2460672-41-5 C14H19BN4O2
(2-methyl-6-(thiazol-4-yl)pyridin-3-yl)boronic acid (2-methyl-6-(thiazol-4-yl)pyridin-3-yl)boronic acid 2710290-32-5 C9H9BN2O2S
tert-butyl (5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridin-2-yl)carbamate tert-butyl (5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)pyridin-2-yl)carbamate 3124610-92-7
5-(2,2-difluorocyclopropyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 5-(2,2-difluorocyclopropyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710293-41-5 C14H18BF2NO2
4,6-difluoro-N,N-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine 4,6-difluoro-N,N-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine 2710293-65-3 C13H19BF2N2O2
2,4-difluoro-6-(tetrahydro-2H-pyran-3-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2,4-difluoro-6-(tetrahydro-2H-pyran-3-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710293-80-2 C16H22BF2NO3
4-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-ol 4-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-ol 2710293-86-8 C11H15BClNO3
2-(azetidin-1-yl)-5-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2-(azetidin-1-yl)-5-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-02-1 C14H20BFN2O2
5-(2-methoxyethoxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 5-(2-methoxyethoxy)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-18-9 C14H22BNO4
7-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyrimidine 7-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyrimidine 2710294-40-7 C12H15BClN3O2
2,4-difluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2,4-difluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710294-46-3 C11H14BF2NO2
5-(bicyclo[1.1.1]pentan-1-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 5-(bicyclo[1.1.1]pentan-1-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 2710295-75-1 C16H22BNO2
2-(3-methylbicyclo[1.1.1]pentan-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2-(3-methylbicyclo[1.1.1]pentan-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine 2710295-81-9 C16H23BN2O2
2-(pyrimidin-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2-(pyrimidin-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2710297-49-5 C13H16BN3O3
2-(pyridin-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2-(pyridin-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole 2710297-56-4 C14H17BN2O3
5-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 5-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 2711075-22-6 C13H17BF3NO3
tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazol-1-yl)pyrrolidine-1-carboxylate tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazol-1-yl)pyrrolidine-1-carboxylate 2710298-20-5 C17H29BN4O4
2-(3-fluorophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2-(3-fluorophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2710298-64-7 C14H17BFN3O2
4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(o-tolyl)-2H-1,2,3-triazole 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(o-tolyl)-2H-1,2,3-triazole 2710298-69-2 C15H20BN3O2
2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazol-2-yl)thiazole 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazol-2-yl)thiazole 2710298-83-0 C11H15BN4O2S
2-(furan-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2-(furan-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2710298-88-5 C12H16BN3O3
6-(oxetan-3-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 6-(oxetan-3-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3124611-15-7
3-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3124611-37-3
3-(tetrahydrofuran-2-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3-(tetrahydrofuran-2-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 3124611-42-0
tert-butyl 2-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-1,4-oxazine-4-carboxylate tert-butyl 2-cyclopropyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-1,4-oxazine-4-carboxylate 3124611-58-8
2-(4-cyclopropyl-5-methylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(4-cyclopropyl-5-methylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 3124611-63-5
tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)morpholine-4-carboxylate tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)morpholine-4-carboxylate 3124611-79-3
tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)morpholine-4-carboxylate tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)morpholine-4-carboxylate 3124611-84-0
4-fluoro-2-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 4-fluoro-2-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 3124611-98-6
4-methyl-2-(tetrahydrofuran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 4-methyl-2-(tetrahydrofuran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 3124612-03-6
2-benzyl-4-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 2-benzyl-4-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,2,3-triazole 3124612-39-8
1-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one 1-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one 3124612-44-5
2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine 2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine 3124612-60-5
4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine 4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)pyridine 3124612-65-0
tert-butyl 4-(2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)piperidine-1-carboxylate tert-butyl 4-(2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)piperidine-1-carboxylate 2304817-43-2 C22H35BN2O5
N,N-dimethyl-1-(pyridin-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-2-amine N,N-dimethyl-1-(pyridin-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazol-2-amine 2304818-35-5 C16H23BN4O2
(2-fluoro-6-(methyl-d3)pyridin-4-yl-3,5-d2)boronic acid (2-fluoro-6-(methyl-d3)pyridin-4-yl-3,5-d2)boronic acid 2368221-15-0 C6H2BD5FNO2
(4-fluoro-6-(methoxy-d3)pyridin-3-yl-2,5-d2)boronic acid (4-fluoro-6-(methoxy-d3)pyridin-3-yl-2,5-d2)boronic acid 2368221-20-7 C6H2BD5FNO3
2-chlorophenanthro[2,3-b]benzofuran 2-chlorophenanthro[2,3-b]benzofuran 2978784-04-0 C20H11ClO
9-chlorophenanthro[4,3-b]benzofuran 9-chlorophenanthro[4,3-b]benzofuran 2742678-39-1 C20H11ClO
4-Bromoquinazoline 4-Bromoquinazoline 354574-59-7 C8H5BrN2
4-piperidin-3-ylpyridine 4-piperidin-3-ylpyridine 143924-50-9 C10H14N2
1,3-Dimethyl-5-hydroxypyrazole 1,3-Dimethyl-5-hydroxypyrazole 5203-77-0 C5H8N2O
3-Amino-5-cyclobutyl-1H-pyrazole 3-Amino-5-cyclobutyl-1H-pyrazole 326827-21-8 C7H11N3
Methyloxirane polymer with oxirane, mono[2-(6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl)ethyl] ether Methyloxirane polymer with oxirane, mono[2-(6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl)ethyl] ether 174955-61-4 C16H28O3
5-AMINOMETHYL INDAZOLE 5-AMINOMETHYL INDAZOLE 267413-25-2 C8H9N3
7-BROMO-2-METHYLQUINAZOLINE 7-BROMO-2-METHYLQUINAZOLINE 552331-87-0 C9H7BrN2
2-Chloro-7-fluoroquinazoline 2-Chloro-7-fluoroquinazoline 956101-10-3 C8H4ClFN2
8-Benzyl-3,8-diaza-bicyclo[3.2.1]octane
8-Benzyl-3,8-diaza-bicyclo[3.2.1]octane 93428-56-9 C13H18N2
Cyclopropanecarboxylic acid [4-(4,6-dichloropyrimidin-2-ylsulfanyl)phenyl]amide Cyclopropanecarboxylic acid [4-(4,6-dichloropyrimidin-2-ylsulfanyl)phenyl]amide 639090-53-2 C14H11Cl2N3OS
4-AMINO-3-FORMYLPYRIDINE HCL 4-AMINO-3-FORMYLPYRIDINE HCL 927891-97-2 C6H6N2O·HCl
METHYL (R)-1-TRITYL-2-AZIRIDINECARBOXYLATE METHYL (R)-1-TRITYL-2-AZIRIDINECARBOXYLATE 160233-42-1 C23H21NO2
N-(2,2,2-trifluoroethyl)pyrrolidine-2-carboxamide hydrochloride N-(2,2,2-trifluoroethyl)pyrrolidine-2-carboxamide hydrochloride 1078163-20-8 C7H12ClF3N2O
3-(4-AMINO-PHENYL)-PYRROLIDINE-2,5-DIONE 3-(4-AMINO-PHENYL)-PYRROLIDINE-2,5-DIONE 32856-49-8 C10H10N2O2
Inosine-5'-diphosphoric acid disodium salt Inosine-5'-diphosphoric acid disodium salt 54735-61-4 C10H15N4NaO11P2
6,6'-DICYANO-2,2'-BIPYRIDINE 6,6'-DICYANO-2,2'-BIPYRIDINE 4411-83-0 C12H6N4
4-(HYDROXYMETHYL)-1-METHYLPYRROLIDIN-2-ONE 4-(HYDROXYMETHYL)-1-METHYLPYRROLIDIN-2-ONE 59887-20-6 C6H11NO2
1-ISOPROPYL-1H-1,2,3-TRIAZOL-4-AMINE 1-ISOPROPYL-1H-1,2,3-TRIAZOL-4-AMINE 959237-92-4 C5H10N4
4-CHLORO-5-IODO-7-METHYL-7H-PYRROLO[2,3-D]PYRIMIDINE 4-CHLORO-5-IODO-7-METHYL-7H-PYRROLO[2,3-D]PYRIMIDINE 833481-37-1 C7H5ClIN3
7-BROMO-1,5-DIHYDRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE 7-BROMO-1,5-DIHYDRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE 93587-23-6 C6H4BrN3O
4-BROMO-2-METHYL-1H-BENZIMIDAZOLE 4-BROMO-2-METHYL-1H-BENZIMIDAZOLE 20223-87-4 C8H7BrN2
4,6-DICHLORO-2-(3-METHOXYPHENYL)PYRIMIDINE 4,6-DICHLORO-2-(3-METHOXYPHENYL)PYRIMIDINE 83217-28-1 C11H8Cl2N2O
4,6-DICHLORO-2-(2-METHOXYPHENYL)PYRIMIDINE 4,6-DICHLORO-2-(2-METHOXYPHENYL)PYRIMIDINE 83217-29-2 C11H8Cl2N2O
7-BroMo-2,3-dihydro-1H-indole 7-BroMo-2,3-dihydro-1H-indole 62813-85-8 C8H8BrN
4-(5-BROMOTHIAZOL-2-YL)MORPHOLINE 4-(5-BROMOTHIAZOL-2-YL)MORPHOLINE 933728-73-5 C7H9BrN2OS
2-O-TOLYL-MORPHOLINE 2-O-TOLYL-MORPHOLINE 1017395-56-0 C11H15NO
1-(METHOXYETHYL)-1-METHYLPYRROLIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE 1-(METHOXYETHYL)-1-METHYLPYRROLIDINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE 757240-24-7 C8H18NO.C2F6NO4S2
Ethyl 4-chlorothieno[2,3-d]pyrimidine-2-carboxylate Ethyl 4-chlorothieno[2,3-d]pyrimidine-2-carboxylate 1192540-11-6 C9H7ClN2O2S
5-Bromo-4-chloro-1H-indazole 5-Bromo-4-chloro-1H-indazole 1082041-90-4 C7H4BrClN2
1-(2-Chloroethyl)pyrrolidine Hydrochloride 1-(2-Chloroethyl)pyrrolidine Hydrochloride 7250-67-1 C6H13Cl2N
4-Chloro-6-methyl-1H-pyrazolo[3,4-d]pyrimidine 4-Chloro-6-methyl-1H-pyrazolo[3,4-d]pyrimidine 30129-53-4 C6H5ClN4
(3S,4R)-1-(tert-butoxycarbonyl)-4-(4-(trifluoromethyl)phenyl)pyrrolidine-3-carboxylic acid (3S,4R)-1-(tert-butoxycarbonyl)-4-(4-(trifluoromethyl)phenyl)pyrrolidine-3-carboxylic acid 955137-85-6 C17H20F3NO4
2-Fluoro-6-(trifluoromethyl)pyridine-3-boronic acid 2-Fluoro-6-(trifluoromethyl)pyridine-3-boronic acid 1150114-63-8 C6H4BF4NO2
3-Tert-Butyl-1H-Pyrazol-4-carbaldehyde 3-Tert-Butyl-1H-Pyrazol-4-carbaldehyde 1001020-17-2 C8H12N2O
2-(4-fluorophenyl)pyridin-4-amine 2-(4-fluorophenyl)pyridin-4-amine 886366-09-2 C11H9FN2
2-morpholinothiazol-4-amine 2-morpholinothiazol-4-amine 695147-00-3 C7H11N3OS
5-BROMO-2-CHLORO-BENZOXAZOLE 5-BROMO-2-CHLORO-BENZOXAZOLE 1030377-54-8 C7H3BrClNO
4-Methoxy-2-(trifluoromethyl)pyridine 4-Methoxy-2-(trifluoromethyl)pyridine 1065103-97-0 C7H6F3NO
2-Amino-3-bromo-4-phenylpyridine 2-Amino-3-bromo-4-phenylpyridine 680221-59-4 C11H9BrN2
methyl 6'-amino-4'-ethyl-5'-(4-methoxyphenyl)-[3,3'-bipyridine]-6-carboxylate methyl 6'-amino-4'-ethyl-5'-(4-methoxyphenyl)-[3,3'-bipyridine]-6-carboxylate 577764-42-2 C21H17N3O3
tert-Butyl (4-Ethylfuran-2-yl)carbamate tert-Butyl (4-Ethylfuran-2-yl)carbamate
4-bromo-3-((1-(methyl-d3)azetidin-3-yl-2,2,3,4,4-d5)oxy)pyridine-2,5,6-d3 4-bromo-3-((1-(methyl-d3)azetidin-3-yl-2,2,3,4,4-d5)oxy)pyridine-2,5,6-d3 3124620-41-0 C9BrD11N2O
4-bromo-3-(1-(methyl-d3)-1H-pyrazol-3-yl-4,5-d2)pyridine-2,5,6-d3 4-bromo-3-(1-(methyl-d3)-1H-pyrazol-3-yl-4,5-d2)pyridine-2,5,6-d3 3124620-46-5 C9BrD8N3
4-bromo-3-(1,2-dimethyl-1H-imidazol-5-yl)pyridine 4-bromo-3-(1,2-dimethyl-1H-imidazol-5-yl)pyridine 3124610-70-1 C10H10BrN3
4-bromo-3-(2-methyl-2H-1,2,3-triazol-4-yl)pyridine 4-bromo-3-(2-methyl-2H-1,2,3-triazol-4-yl)pyridine 3124610-75-6 C8H7BrN4
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