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| • | Ethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-... (CAS: 1803791-10-7) | • | ETHYL 4-(4-BIPHENYL)-4-OXOBUTYRATE (CAS: 1230-54-2) | • | Ethyl 4-(4-Fluorophenyl)-2-thiazolecarboxylate (CAS: 886366-37-6) |
| • | ETHYL 4-(4-METHYLPHENYL)-4-OXOBUTYRATE (CAS: 6942-61-6) | • | Ethyl 4-(4-Pyridyl)-2-thiazolecarboxylate (CAS: 216867-38-8) | • | Ethyl 4-(5-Oxazolyl)benzoate (CAS: 1261268-94-3) |
| • | Ethyl 4-(6-oxopiperidin-3-yl)benzoate (CAS: 281233-72-5) | • | ETHYL 4-(AMINOMETHYL)CYCLOHEXANECARBOXYLATE (CAS: 35879-53-9) | • | Ethyl 4-(benzylamino)-3-nitrobenzoate (CAS: 312921-97-4) |
| • | Ethyl 4-(butylamino)benzoate (CAS: 94-32-6) | • | Ethyl 4-(diethylamino)-6,8-difluoroquinoline-3-car... (CAS: 1216767-97-3) | • | Ethyl 4-(Difluoromethoxy)-3-Iodobenzoate (CAS: 1131614-53-3) |
| • | Ethyl 4-(dimethylamino)-8-methoxy-6-methylquinolin... (CAS: 1315346-83-8) | • | ETHYL 4-(DIPENTYLAMINO)-4-OXOBUTANOATE (CAS: 93534-87-3) | • | Ethyl 4-(tert-butyl)picolinate (CAS: 177784-98-4) |
| • | Ethyl 4-[2-[methyl-[(2-methylpropan-2-yl)oxycarbon... (CAS: 1255701-57-5) | • | Ethyl 4-Amino-1-Methyl-1h-Imidazole-5-Carboxylate (CAS: 61982-18-1) | • | Ethyl 4-amino-2-ethylcyclopentanecarboxylate (CAS: 1201187-14-5) |
| • | Ethyl 4-amino-2-methoxy-5-nitrobenzoate (CAS: 1219014-66-0) | • | ETHYL 4-AMINO-2-METHOXY-PYRIMIDINE-5-CARBOXYLATE (CAS: 7356-61-8) | • | ETHYL 4-AMINO-2-METHOXYPYRIMIDINE-5-CARBOXYLATE (CAS: 96251-63-7) |
| • | Ethyl 4-amino-2-methyl-5,6,7,8-tetrahydroquinoline... (CAS: 1352723-59-1) | • | Ethyl 4-amino-3,5,6-trichloropicolinate (CAS: 91867-42-4) | • | ETHYL 4-AMINO-3-NITROBENZOATE (CAS: 76918-64-4) |
| • | ethyl 4-amino-3-phenylisothiazole-5-carboxylate (CAS: 65237-13-0) | • | Ethyl 4-amino-5-mesityl-1-methyl-1H-pyrazole-3-car... (CAS: 203870-53-5) | • | ETHYL 4-AMINO-5-PHENYL-2H-PYRAZOLE-3-CARBOXYLATE (CAS: 70015-76-8) |
| • | Ethyl 4-amino-6-fluoro-8-methylquinoline-3-carboxy... (CAS: 1315371-28-8) | • | Ethyl 4-aminopyrazolo[5,1-c][1,2,4]triazine-3-carb... | • | Ethyl 4-benzoyl-3-methyl-1H-pyrrole-2-carboxylate (CAS: 112381-11-0) |
| • | Ethyl 4-benzyl-2-bromo-1,3-thiazole-5-carboxylate (CAS: 1206907-97-2) | • | Ethyl 4-bromo-1,3,5-trimethyl-1H-pyrrole-2-carboxy... (CAS: 86614-23-5) | • | ethyl 4-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxyl... (CAS: 942920-55-0) |
| • | Ethyl 4-bromo-2-(trifluoromethoxy)benzoate (CAS: 933785-18-3) | • | Ethyl 4-bromo-2-fluoro-6-hydroxybenzoate (CAS: 1805551-93-2) | • | ethyl 4-bromo-3,5-difluorobenzoate (CAS: 1562995-70-3) |
| • | Ethyl 4-bromo-3,5-dimethoxybenzoate (CAS: 745026-69-1) | • | Ethyl 4-bromo-3-formyl-1H-indole-7-carboxylate (CAS: 1643573-87-8) | • | Ethyl 4-bromo-6,7-dimethoxyquinoline-3-carboxylate (CAS: 1378260-93-5) |
| • | Ethyl 4-bromo-7-chloro-6-methoxyquinoline-3-carbox... (CAS: 1378259-31-4) | • | Ethyl 4-bromopyrazolo[1,5-a]pyridine-3-carboxylate (CAS: 55899-29-1) | • | Ethyl 4-bromothieno[2,3-c]pyridine-2-carboxylate (CAS: 1809004-78-1) |
| • | Ethyl 4-Butyl-3-Iodobenzoate (CAS: 1131614-33-9) | • | ethyl 4-chloro-1-methyl-2-oxo-1,2-dihydroquinoline... | • | Ethyl 4-chloro-1H-imidazole-2-carboxylate (CAS: 1824094-92-9) |
| • | Ethyl 4-chloro-2-ethyl-5-hydroxy-7-methylpyrrolo[2... (CAS: 1269118-48-0) | • | ethyl 4-Chloro-2-fluoro-6-methoxybenzoate (CAS: 1823930-39-7) | • | Ethyl 4-chloro-2-oxo-1h-quinoline-3-carboxylate (CAS: 99429-64-8) |
| • | ethyl 4-chloro-2-phenyl-5-pyrimidinecarboxylate (CAS: 24755-82-6) | • | Ethyl 4-chloro-2-phenylthiazole-5-carboxylate (CAS: 83983-12-4) | • | ethyl 4-chloro-5-(trifluoromethyl)pyridine-2-carbo... (CAS: 1407516-45-3) |
| • | Ethyl 4-chloro-5-hydroxy-2,7-dimethylpyrrolo[2,3-d... (CAS: 1269117-94-3) | • | Ethyl 4-chloro-5-methyl-5h-pyrrolo[3,2-d]pyrimidin... (CAS: 1234616-53-5) | • | ethyl 4-chloro-6-(trifluoromethyl)nicotinate (CAS: 1196146-35-6) |
| • | ETHYL 4-CHLORO-6-(TRIFLUOROMETHYL)QUINOLINE-3-CARB... (CAS: 193827-69-9) | • | Ethyl 4-chloro-6-fluoropyrrolo[1,2-b]pyridazine-3-... (CAS: 1416438-69-1) | • | Ethyl 4-Chloro-8-Fluoroquinoline-3-Carboxylate (CAS: 56824-90-9) |
| • | Ethyl 4-chlorobenzo[d]thiazole-2-carboxylate (CAS: 1188144-96-8) | • | ethyl 4-chloropyrrolo[1,2-b]pyridazine-3-carboxyla... (CAS: 1400688-74-5) | • | Ethyl 4-chloropyrrolo[2,1-f][1,2,4]triazine-7-carb... (CAS: 1356016-43-7) |
| • | ETHYL 4-CHLOROTHIAZOLE-5-CARBOXYLATE (CAS: 444909-55-1) | • | Ethyl 4-cyclopropyl-1-(3-methoxyphenyl)-1H-1,2,3-t... (CAS: 1428241-41-1) | • | ethyl 4-cyclopropyl-2-(methylthio)pyrimidine-5-car... (CAS: 1191094-23-1) |
| • | Ethyl 4-ethoxy-2-methylthiazole-5-carboxylate (CAS: 1547490-39-0) | • | ethyl 4-ethylthiazole-2-carboxylate (CAS: 79247-88-4) | • | Ethyl 4-fluoro-5-methoxy-1-methyl-1H-pyrazole-3-ca... (CAS: 1779121-54-8) |
| • | Ethyl 4-Fluoropiperidine-4-Carboxylate Hydrochlori... (CAS: 845909-49-1) | • | Ethyl 4-formyl-1-methyl-1H-pyrazole-5-carboxylate (CAS: 1350475-46-5) | • | Ethyl 4-hydrazinyl-2-hydroxy-6-methylpyrimidine-5-... (CAS: 62900-13-4) |
| • | ETHYL 4-HYDROXY-2-(PYRIDIN-2-YL)-5-PYRIMIDINECARBO... (CAS: 60060-10-8) | • | Ethyl 4-hydroxy-5-nitronicotinate (CAS: 1214367-07-3) | • | Ethyl 4-Hydroxy-7H-Pyrrolo[2,3-D]pyrimidine-6-Carb... (CAS: 187724-99-8) |
| • | Ethyl 4-hydroxybenzo[h]quinoline-3-carboxylate (CAS: 71083-13-1) | • | Ethyl 4-iodo-1-(4-methoxybenzyl)-1H-pyrazole-3-car... (CAS: 1355249-29-4) | • | Ethyl 4-iodo-3-nitrobenzoate (CAS: 57362-77-3) |
| • | ETHYL 4-ISOPROPOXY-3-METHOXYPHENYLACETATE (CAS: 1256581-66-4) | • | Ethyl 4-isopropylpiperidine-4-carboxylate hydrochl... (CAS: 1186663-19-3) | • | ETHYL 4-METHOXY-1-METHYL-2-OXO-1,2,5,6-TETRAHYDROP... (CAS: 851726-49-3) |
| • | Ethyl 4-methoxy-1H-indole-6-carboxylate (CAS: 1459215-15-6) | • | Ethyl 4-methoxy-2-nitrobenzoate (CAS: 13324-13-5) | • | ETHYL 4-METHYL-2-(3-CHLOROPHENYL)THIAZOLE-5-CARBOX... (CAS: 1160573-81-8) |
| • | ETHYL 4-METHYL-2-(4-METHOXYPHENYL)THIAZOLE-5-CARBO... (CAS: 54032-88-1) | • | ETHYL 4-METHYL-5-OXO-2H-OXAZOLE-3-CARBOXYLATE (CAS: 84280-59-1) | • | Ethyl 4-methylthiazole-2-carboxylate (CAS: 7210-73-3) |
| • | Ethyl 4-methylthiophene-2-carboxylate (CAS: 14282-79-2) | • | ETHYL 4-NITRO-1H-IMIDAZOLE-2-CARBOXYLATE (CAS: 865998-46-5) | • | ethyl 4-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carbo... (CAS: 58596-36-4) |
| • | Ethyl 4-oxo-1,4-dihydropyrido[3,4-d]pyrimidine-2-c... (CAS: 869296-21-6) | • | Ethyl 4-oxo-3,4-dihydropyrido[2,3-d]pyrimidine-2-c... (CAS: 55149-36-5) | • | Ethyl 4-oxo-3,4-dihydropyrido[3,4-d]pyrimidine-2-c... (CAS: 869296-21-9) |
| • | ETHYL 4-OXO-4-(3-THIENYL)BUTYRATE (CAS: 473693-79-7) | • | ETHYL 4-OXO-4-(4-PENTYLOXYPHENYL)BUTYRATE (CAS: 898757-79-4) | • | ETHYL 4-OXO-4-[2-(PIPERIDIN-1-YLMETHYL)PHENYL]BUTY... (CAS: 898773-91-6) |
| • | Ethyl 4-pyridylacetate (CAS: 54401-85-3) | • | Ethyl 4-Quinazolone-2-Carboxylate (CAS: 29113-33-5) | • | Ethyl 4H-pyrrolo[2.3-d][1,3]thiazole-5-carboxylate (CAS: 238749-53-6) |
| • | Ethyl 5,8-difluoro-4-thioxo-1,4-dihydroquinoline-3... (CAS: 1315347-04-6) | • | Ethyl 5-(((3-chlorophenyl)amino)methyl)furan-2-car... (CAS: 1217034-54-2) | • | Ethyl 5-((5-ethyl-1,3,4-thiadiazol-2-yl)carbamoyl)... (CAS: 1142209-48-0) |
| • | Ethyl 5-((ethylsulfonyl)methyl)-4,5-dihydroisoxazo... (CAS: 1707403-05-1) |