Acetic acid 1-[1-methoxymethyl-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-methoxymethyl-6-oxo-2,3,7,7a-tetrahydro-6H-benzofuran-3a-yl ester 、 Acetic acid (3R,3aS,7aR)-3-methoxymethyl-6-oxo-2,3,7,7a-tetrahydro-6H-benzofuran-3a-yl ester