Citation: Shu Tao MA, Hong Xiang LOU. An Efficient Synthesis of Ethyl 7-Chloro-6-fluoro-1-methyl-4-oxo-1, 4-dihydro-[1, 3]thiazeto[3, 2-a]quinoline-3-carboxylate as Intermediate of the Prulifloxacin Containing Tricyclic Fluoroquinolone[J]. Chinese Chemical Letters, ;2006, 17(6): 714-716. shu

An Efficient Synthesis of Ethyl 7-Chloro-6-fluoro-1-methyl-4-oxo-1, 4-dihydro-[1, 3]thiazeto[3, 2-a]quinoline-3-carboxylate as Intermediate of the Prulifloxacin Containing Tricyclic Fluoroquinolone

School of Pharmacy, Shandong University, Jinan 250012

Received Date: 28 December 2005

Fund Project: We are grateful to the National Natural Science Foundation of China (No. 20372043) for financial support for this work.

Novel ethyl 7-chloro-6-fluoro-1-methyl-4-oxo-1, 4-dihydro-[1, 3]thiazeto[3, 2-a]quinoline-3-carboxylate 2 was prepared from 3-chloro-4-fluoroaniline in eight steps. It can be used as a new intermediate for the synthesis of tricyclic fluoroquinolones.
- Synthesis,
- tricyclic fluoroquinolone
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