Metal salts of 3-methyl-chromane or thiochromane derivatives
申请人:——
公开号:US20030092695A1
公开(公告)日:2003-05-15
The present invention relates to metal salts of 3-methyl-chromane or thiochromane derivatives, stereoisomers or hydrates thereof, and an anti-estrogenic pharmaceutical composition which comprises the above compound as an active component and exhibits a highly improved solubility.
The present invention relates to a novel benzopyran or thiobenzopyran derivative represented by formula (1): pharmaceutically acceptable salt or stereoisomer thereof, in which X, R
1
, R
2
, R
3
, R
4
and A are defined as described in the specification, and to a process for preparation thereof and a pharmaceutical composition having anti-estrogenic activity which contains the compound (1) as an active component.