1-((1R,5S,7S)-8,9-Dichloro-10-oxa-3-thia-tricyclo[5.2.1.01,5]dec-8-en-7-yl)-ethanone 生成 (2
R)-5
t-((
S)-1-hydroxy-ethyl)-2,3
t-dimethyl-tetrahydro-furan-2
r,5
c-dicarboxylic acid dimethyl ester 、 (2R,3R,5R)-5-((R)-1-Hydroxy-ethyl)-2,3-dimethyl-tetrahydro-furan-2,5-dicarboxylic acid dimethyl ester