Access to α,γ-Diamino Diacid Derivatives via Organocatalytic Asymmetric 1,4-Addition of Azlactones and Dehydroalanines
作者:Junxian Yang、Wangsheng Sun、Zeyuan He、Changjun Yu、Guangjun Bao、Yiping Li、Yuyang Liu、Liang Hong、Rui Wang
DOI:10.1021/acs.orglett.8b03020
日期:2018.11.16
functional-group-tolerant organocatalyticasymmetric 1,4-addition of azlactones and dehydroalanine is disclosed. The reaction is used for the first synthesis of chiral α,γ-diamino diacid derivatives with nonadjacent stereogenic centers in moderate to high yields, with excellent diastereo- and enantioselectivities, under the catalysis of a chiral thiourea catalyst. In addition, the reaction could be conducted