(1S,2R,5R,7R,11S,12S,15R,16R)-2,16-dimethyl-15-[(2R)-6-methylheptan-2-yl]-9-nitro-6-oxapentacyclo[9.7.0.02,8.05,7.012,16]octadec-8-ene                                                                                                                                                                                                                                                                                                          生成                                                 
(1S,2R,5R,9S,13S,14S,17R,18R)-2,18-dimethyl-17-[(2R)-6-methylheptan-2-yl]-11-nitro-7-phenyl-6-oxa-8-azapentacyclo[11.7.0.02,10.05,9.014,18]icosa-7,10-diene