2-(4-{2-[2-Ethyl-5'-(6-hydroxy-6-hydroxymethyl-3,5-dimethyl-tetrahydro-pyran-2-yl)-3'-methyl-octahydro-[2,2']bifuranyl-5-yl]-9-hydroxy-2,8-dimethyl-1,6-dioxa-spiro[4.5]dec-7-yl}-3-methoxy-2-methyl-pentanoylamino)-pentanedioic acid dibenzyl ester 在
sodium hydroxide 、
copper(II) sulfate 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 0.5h,
以83%的产率得到2-Monensylamidopentanedioic acid γ-benzyl ester