Compounds of formula I <IMAGE> wherein R1 is alkyl of 1 to 4 C-atoms, allyl or 2-propinyl, one of groups R2 and R3 is alkyl of 1 to 4 C-atoms and the other of these groups R2 and R3 is a group of formula <IMAGE>
申请公布号
ZA8708717(B)
申请公布日期
1989.06.28
申请号
ZA19870008717
申请日期
1987.11.20
申请人
SANDOZ LTD.
发明人
CYRIL MAHAIM;CHRISTOS PAPAGEORGIOU;TREVOR JAMES PETCHER
