甲醇 、
2α-benzoyl-4α,13α-diacetoxy-7β,9α,10β,15-tetrahydroxy-11(12)-ene-20,5-epoxy-11(15->1)-abeo-taxane 在
对甲苯磺酸 作用下,
反应 48.0h,
以44%的产率得到Benzoic acid (2R,3aS,4S,4aR,5S,6S,8S,8aS,9R,10R)-4,5,6,8,9,10-hexahydroxy-3a-(1-hydroxy-1-methyl-ethyl)-2-methoxy-1,8a-dimethyl-2,3,3a,4,4a,5,6,7,8,8a,9,10-dodecahydro-benzo[f]azulen-5-ylmethyl ester