tetrahydrocoropilin 、
(R)-methoxytrifluoromethylphenylacetyl chloride 在
吡啶 作用下,
以0.8 mg的产率得到[(3R,3aS,6S,6aR,9R,9aS,9bR)-6a-hydroxy-3,6,9a-trimethyl-2-oxo-3a,4,5,6,7,8,9,9b-octahydro-3H-azuleno[8,7-b]furan-9-yl] (2S)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoate