The β-glycosyl esters of cis-cinnamic acid were synthesized directly using Hannesian’s unprotected glycosyl donor and the carboxylic acid in toluene. This protocol does not require protecting groups on the glycosyl donors, and high stereoselectivity was achieved. The first synthesis of a potent allelochemical, 1-O-cis-cinnamoyl-β-d-glucopyranose, is also described.
使用Hannesian未保护的糖基供体和
甲苯中的
羧酸,直接合成了顺式
肉桂酸的β-糖基酯。该方案不需要糖基供体上的保护基,并且实现了高立体选择性。还描述了有效的化感
化学物质1 - O-顺式-肉桂酰基-β-d-
吡喃
葡萄糖的首次合成。