Acetic acid 1-[1-benzyloxymethyl-2-(tetrahydro-pyran-2-yloxy)-ethyl]-4-oxo-cyclohexa-2,5-dienyl ester                                                                                                                                                              在
                                                                                                                                                                                 
溶剂黄146                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 Acetic acid (3S,3aS,7aR)-3-benzyloxymethyl-6-oxo-2,3,7,7a-tetrahydro-6H-benzofuran-3a-yl ester   、                                                                                             Acetic acid (3R,3aS,7aR)-3-benzyloxymethyl-6-oxo-2,3,7,7a-tetrahydro-6H-benzofuran-3a-yl ester