total synthesis of (−)-kaitocephalin, a novel antagonist of ionotropic glutamate receptors, was accomplished in 12 steps starting from 5-substituted proline ester via the aldol reaction with OBO-serine aldehyde, (E)-selective α,β-dehydroamino acid synthesis using a new HWE reagent, and catalytic hydrogenation.
从5取代的脯
氨酸酯开始,通过与OBO-
丝氨酸醛的醛醇缩合反应((E)-选择性α,β)从5-取代的脯
氨酸酯开始,以12个步骤完成了高度非对映选择性的(-)-kaitocephalin的合成,这是一种新型的离子型谷
氨酸受体拮抗剂。-使用新的HWE试剂合成-脱氢
氨基酸,并进行催化加氢。