Peptide‐Catalyzed Fragment Couplings that Form Axially Chiral Non‐
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C
<sub>2</sub>
</i>
‐Symmetric Biaryls
作者:Gavin Coombs、Marcus H. Sak、Scott J. Miller
DOI:10.1002/anie.201913563
日期:2020.2.10
We have demonstrated that small, modular, tetrameric peptides featuring the Lewis-basic residue β-dimethylaminoalanine (Dmaa) are capable of atroposelectively coupling naphthols and ester-bearing quinones to yield non-C2 -symmetric BINOL-type scaffolds with good yields and enantioselectivity. The study culminates in the asymmetric synthesis of backbone-substituted scaffolds similar to 3,3'-disubstituted
我们已经证明具有路易斯基本残基β-二甲基氨基丙氨酸(Dmaa)的小,模块化,四聚体肽能够对萘酚和带有酯的醌进行熵选择性偶联,以产生具有良好收率和对映选择性的非C2对称BINOL型支架。该研究最终以不对称合成类似于3,3'-双取代BINOL的骨架取代支架(如(R)-TRIP),重结晶后具有良好的(94:6 er)至优异的(> 99.9:0.1 er)对映选择性,以及修饰最小的非甾体类抗炎药(NSAID)萘普生的非对映选择性净芳基化。