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【结 构 式】

【分子编号】43208

【品名】ethyl 7-chloro-1-cyclopropyl-6-fluoro-4-oxo-2-(phenylsulfanyl)-1,4-dihydro-3-quinolinecarboxylate

【CA登记号】

【 分 子 式 】C21H17ClFNO3S

【 分 子 量 】417.8880232

【元素组成】C 60.36% H 4.1% Cl 8.48% F 4.55% N 3.35% O 11.49% S 7.67%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(III)

The cyclization of 2-(2,4-dichloro-5-fluorobenzoyl)acetic acid ethyl ester (I) with S-phenyl(cyclopropylimino)chlorothioformate (II) by means of NaH in DMF gives 7-chloro-1-cyclopropyl-6-fluoro-4-oxo-2-(phenylsulfanyl)-1,4-dihydroquinoline-3-carboxylic acid ethyl ester (III), which is oxidized with MCPBA in dichloromethane, yielding the sulfinyl derivative (IV). The cyclization of (IV) with NaSH and hydroxylamine-O-sulfonic acid in THF affords the isothiazoloquinoline (V), which is finally condensed with piperazine in pyridine to furnish the target compound.

1 Mohamadi, F.; Spees, M.M.; Grindey, G.B.; Antineoplastic bicyclic sulfonylureas. Bioorg Med Chem Lett 1992, 3, 987-992.
2 Chu, D.T.W.; Isothiazoloquinolones: Antibacterial and antineoplastic agents. Drugs Fut 1992, 17, 12, 1101.
3 Ehlhardt, W.J.; Woodland, J.M.; Worzalla, J.F.; Bewley, J.R.; Grindey, G.B.; Todd, G.C.; Toth, J.E.; Howbert, J.J.; Comparison of metabolism and toxicity to the structure of the anticancer agent sulofenur and related sulfonylureas. Chem Res Toxicol 1992, 5, 5, 667.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 22096 ethyl 3-(2,4-dichloro-5-fluorophenyl)-3-oxopropanoate C11H9Cl2FO3 详情 详情
(II) 43201 1-[[chloro(cyclopropylimino)methyl]sulfanyl]benzene C10H10ClNS 详情 详情
(III) 43208 ethyl 7-chloro-1-cyclopropyl-6-fluoro-4-oxo-2-(phenylsulfanyl)-1,4-dihydro-3-quinolinecarboxylate C21H17ClFNO3S 详情 详情
(IV) 43209 ethyl 7-chloro-1-cyclopropyl-6-fluoro-4-oxo-2-(phenylsulfinyl)-1,4-dihydro-3-quinolinecarboxylate C21H17ClFNO4S 详情 详情
(V) 43210 7-chloro-9-cyclopropyl-6-fluoroisothiazolo[5,4-b]quinoline-3,4(2H,9H)-dione C13H8ClFN2O2S 详情 详情
(VI) 10355 Diethylenediamine; Piperazine 110-85-0 C4H10N2 详情 详情
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