作者:Murray Goodman、Jinfang Zhang、Peter Gantzel、Ettore Benedetti
DOI:10.1016/s0040-4039(98)02302-8
日期:1998.12
An expedient and highly stereocontrolled route to (R)-alpha-methyltryptophan and its orthogonally protected analogs has been developed via a four-step conversion from L-alanine in good overall yields. The stereochemistry of the products is confirmed by X-ray diffraction analysis, NMR spectroscopy and optical rotations. (C) 1998 Elsevier Science Ltd. All rights reserved.