(S)-3-[(E)-(2R,3R)-6-(4-Hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-2,3,4-trimethyl-hex-4-enoyl]-4-isopropyl-oxazolidin-2-one                                                                                                                                                              在
                                                                                                                                                                                 lithium hydroxide   、                                                                                                  
双氧水                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃   、                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (E)-(2R,3R)-6-(4-Hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-2,3,4-trimethyl-hex-4-enoic acid