申请人:SMALL PHARMA LTD
公开号:WO2019077332A1
公开(公告)日:2019-04-25
The present invention provides a compound of Formula I, or a pharmaceutically acceptable salt thereof, wherein ≃ is selected from a single bond and a double bond, wherein ≃ is 1, 2 or 3, wherein R1, R2, R3, R4, R5, and R6 are each selected from H and C1-C4 alkyl, and wherein when ≃ is a single bond R7 is selected from OH, O-(C1-C4 alkyl), -OPO3H2 and -OSO3H, and when ≃ is a double bond R7 is selected from H and C1-C4 alkyl.
本发明提供了式I的化合物或其药学上可接受的盐,其中≃选择自单键和双键,其中≃为1、2或3,其中R1、R2、R3、R4、R5和R6各自选择自H和C1-C4烷基,当≃为单键时,R7选择自OH、O-(C1-C4烷基)、-OPO3H2和-OSO3H,当≃为双键时,R7选择自H和C1-C4烷基。