重氮甲烷 、
(3aS,6abeta,10bbeta)-十二氢-6alpha,10aalpha-二甲基-3-亚甲基呋喃并[3',2':6,7]环庚并[1,2-b]吡喃-2,9-二酮 以
氯仿 为溶剂,
生成 (3
S)-6
t,10a-dimethyl-(3
rN,3a
c,6a
c,10a
t,10b
c)-4,5,6,6a,7,8,10a,10b,4',5'-decahydro-3a
H-spiro[furo[3',2':6,7]cyclohepta[1,2-
b]pyran-3,3'-pyrazole]-2,9-dione