136794-74-6 9-(((2-Fluorophenyl)methyl)amino)-5,8,8a,9-tetrahydro-5-(4-hydroxy-3,5-dimethoxyphenyl)-furo(3',4':6,7)naphtho(2,3-d)-1,3-dioxol-6(5aH)-one, (5R-(5alpha,5abeta,8aalpha,9beta))-