LIAONING EMMY BIOLOGICAL PHARMACEUTICAL CO.;LIAONING EMMY BIOLOGICAL PHARMACEUTICAL CO., LTD;SHENYANG EMMY PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD.; LTD
发明人:
ZHOU, YAN,ZHANG, LIRONG,ZHOU, JIE,ZHOU, XIN
申请号：
EP13857383
公开号：
EP2924032A4
申请日:
2013.11.25
申请国别(地区):
EP
年份:
2016
代理人:
摘要：
This invention relates to a compound of formula (I) and its pharmaceutically acceptable salts: wherein R 1 , R 2 , X, Y, A, B are described in this patent specification. This invention also relates to the preparation methods of the compound formula (I) and its pharmaceutically acceptable salt, and a pharmaceutical composition comprising the compounds and its pharmaceutically acceptable salts.
