Synthesis of the proposed structure and revision of stereochemistry of kaitocephalin
作者:Masayuki Okue、Hiroyuki Kobayashi、Kazuo Shin-ya、Kazuo Furihata、Yoichi Hayakawa、Haruo Seto、Hidenori Watanabe、Takeshi Kitahara
DOI:10.1016/s0040-4039(01)02254-7
日期:2002.1
A stereoselective total synthesis of the proposed structure of kaitocephalin (1) was accomplished starting from L-proline and D- and L-serines. How ever, its H-1 NMR spectral data and retention time oil HPLC were not identical with those of authentic natural kaitocephalin. The revised stereochemistry of natural kaitocephalin. (2R)-isomer (16), was inferred from further experiments employing diastereomers and model compounds. (C) 2002 Elsevier Science Ltd. All rights reserved.