Process for the preparation of optically active 4-oxo-1-benzopyran-2-carboxylic acid derivatives and intermediates thereof
申请人:SANWA KAGAKU KENKYUSHO CO., LTD.
公开号:EP0331078A2
公开(公告)日:1989-09-06
process for the preparation of optically active 4-oxo-1-benzopyran-2-carboxylic acid derivatives of the formula
wherein X and Y are hydrogen atom, halogen atom or alkyl group, and R1 is hydrogen atom or alkyl group, intermediates thereof, as well as a process for the preparation of the intermediates.
式中 X 和 Y 为氢原子、卤素原子或烷基,R1 为氢原子或烷基的光学活性 4-氧代-1-苯并吡喃-2-羧酸衍生物的制备工艺,以及其中间体的制备工艺。
其中 X 和 Y 为氢原子、卤素原子或烷基,R1 为氢原子或烷基)的光学活性 4-氧代-1-苯并吡喃-2-羧酸衍生物及其中间体的制备方法。
Gottesmann, Chemische Berichte, 1933, vol. 66, p. 1168,1175
作者:Gottesmann
DOI:——
日期:——
JPH01221374A
申请人:——
公开号:JPH01221374A
公开(公告)日:1989-09-04
ANTI-INFECTIVE AGENTS
申请人:University of Dundee
公开号:US20190225592A1
公开(公告)日:2019-07-25
The present invention relates to a novel class of chromene-2-carboxamide compounds inhibitors of general formula (I) wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
and X are as defined herein, to their use in medicine, and their use as anti-infective agents in particular, to compositions containing them, to processes for their preparation and to intermediates used in such processes.