benzoic acid 4-(2-{N-[3-(2,2-dimethylpropionyloxy)-4-methoxybenzoyl]-N'-methylsulfanylthiocarbonyl-N'-phenylhydrazino}ethyl)-4-ethoxycarbonylcyclohex-2-enyl ester 在
lauroyl 作用下,
以
氯苯 为溶剂,
以21%的产率得到(1SR)-1-benzoyloxy-9-(2,2-dimethylpropionyloxy)-10-methoxy-7-oxo-2,3,4,5,11b,11c-hexahydro-1H,7H-pyrrolo[3,2,1-de]phenanthridine-3a-carboxylic acid ethyl ester