Asymmetric Synthesis of α-Methyl-α-Amino Acids via Diastereoselective Alkylation of (1<i>S</i>)-(+)-3-Carene Derived Tricyclic Iminolactone
作者:Ta-Jung Lu、Cheng-Kun Lin
DOI:10.1021/jo1022537
日期:2011.3.18
novel carene-based alanine-equivalent tricycliciminolactone 16 has been synthesized viastereoselective dihydroxylation of the double bond, IBX oxidation of the secondary alcohol, esterification of the tertiary alcohol, deprotection of the resulting ester, and subsequent cyclization from commercially available (1S)-(+)-3-carene in 79% overall yield. The iminolactone 16 demonstrated high reactivity toward