4-{2-[5-Oxo-3-(tetrahydro-pyran-2-yloxy)-cyclopent-1-enyl]-acetylamino}-butyric acid tetrahydro-pyran-2-yl ester 、 在
溶剂黄146 作用下,
生成 4-[6a-Hydroxy-2-oxo-4-[(E)-3-(tetrahydro-furan-2-yloxy)-oct-1-enyl]-5-(tetrahydro-pyran-2-yloxy)-hexahydro-cyclopenta[b]pyrrol-1-yl]-butyric acid tetrahydro-pyran-2-yl ester