(4aR,8aS)-3a-Methoxy-6,8b-dimethyl-1-oxo-2,3,3a,7,8,8b-hexahydro-1H,4aH-benzo[b]cyclopenta[d]furan-8a-carboxylic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以80.5%的产率得到(1R
*,3S
*,6R
*,7
S,8
S)-7,11-dimethyl-6-hydroxy-3-methoxy-8-(methoxycarbonyl)-2-oxatricyclo<6.4.0.0
3,7>dodec-11-ene