我們依如何引進環外雙鍵的方式歸類,將文獻中合成α-亞甲基丙、丁或戊內酯以及Methylenolactocin' Protilichestirinic acid 這兩種天然物的全合成作探討。
A review on the literature methods to buildup theα-methylene lactones in various ring sizes is described. We also describe the total synthesis of the methylenolactocin and protolichestirinic acid according to their methodology to introduce the double bond.