从化学合成到生物合成——天然产物全合成新趋势
张发光, 曲戈, 孙周通, 马军安

From chemical synthesis to biosynthesis: trends toward total synthesis of natural products
Faguang ZHANG, Ge QU, Zhoutong SUN, Jun′an MA
图10 人源胰岛素分子A和B链的生物合成及化学连接
Fig. 10 Biosynthesis of human insulin A and B chains, as well as their chemical linkage