重氮甲烷 、 (3a
S,6
E,10
E)-5
c-acetoxy-4
t-((2
R)-2,3
c-dimethyl-oxirane-
r-carbonyloxy)-10-methyl-3-methylene-2-oxo-(3a
r,11a
t)-2,3,3a,4,5,8,9,11a-octahydro-cyclodeca[
b]furan-6-carboxylic acid methyl ester 以
乙醚 为溶剂,
反应 120.0h,
生成
(3Ξ,3aS,6E,10E)-5c-acetoxy-4t-((2R)-2,3c-dimethyl-oxirane-r-carbonyloxy)-10-methyl-2-oxo-(3ar,11at)-3a,4,5,8,9,11a,4',5'-octahydro-spiro[cyclodeca[b]furan-3,3'-pyrazole]-6-carboxylic acid methyl ester