重氮甲烷 、
(3S,4S,1'S)-(+)-3-acetyloxy-4-(1'-hydroxy-1'-methoxycarbonyl-1'-<(R)-α-methylbenzylaminomethyl>methyl)cyclopent-1-ene-1-carboxylic acid methyl ester 以
乙醚 为溶剂,
反应 3.0h,
以100%的产率得到(4S,5S)-4-Acetoxy-5-[(S)-1-hydroxy-1-methoxycarbonyl-2-((R)-1-phenyl-ethylamino)-ethyl]-3a,4,5,6-tetrahydro-3H-cyclopentapyrazole-6a-carboxylic acid methyl ester