氨基酸合成方法研究—(XI)N-取代亚氨酸酯与芳醛缩合产物—去氢氨基酸衍生物的构型及其NMR研究

STUDIES ON THE SYNTHESIS METHOD OF AMINO ACIDS-(XI) CONFIGURATION OF CONDENSATION PRODUCTS BY N - SUBSTITUTED IMIDATE WITH AROMATIC ALDEHYDES -DEHYDROA- MINO ACID DERIVATIVES AND THE NMR STUDIES

通过~1H NMR、NOE差谱和门控去偶^(13)C NMR等的研究确定了新合成的五对α-去氢氨基酸衍生物的构型,并利用部分弛豫、APT^(13)C NMR二维碳氢相关谱及^(13)C-^(19)F偶合常数等对NMR谱线进行了归属.

The molecular configuration of new synthesized five pairs of title compounds were confirmed by using 1H NMR , NOE difference spectra and gated decoupling 13C NMR etc. .The NMR spectra were assigned by means of PRFT, APT 13C NMR, 2D C-H COSY spectra and 13C-19F coupling constants.