申请人:Sharps Associates
公开号:US04120873A1
公开(公告)日:1978-10-17
Compounds of the formula ##STR1## wherein R.sub.1 is methyl or R.sub.1 R.sub.1 is oxygen; R.sub.2 is alkyl or halogen substituted phenyl alkyl; and R.sub.3 is hydrogen, loweralkyl, loweralkenyl or loweralkynyl.
化合物的公式为##STR1##其中R.sub.1是甲基或R.sub.1R.sub.1是氧; R.sub.2是烷基或卤代苯基烷基; 而R.sub.3是氢、低烷基、低烯基或低炔基。