作 者: ; ; ; (张宏杰); (陈昌祥); (周俊);
机构地区: 中国药科大学
出 处: 《波谱学杂志》 1993年第1期69-74,共6页
摘 要: 在植物新环肽[太子参环肽A(HA)和B(HB)]的结构研究中,应用COLOC谱较成功地解决了其氨基酸序列。结果表明当J值选择在6Hz-15Hz时,COLOC谱能满意地给出氮上含有活泼氢的氨基酸序列。 By combination of several NMR techniques (including 1H-1H、1H-13C COSY、RELAY, and COLOC), the spin systems and sequences of amino acid residues of heterophyllin A and B, two new cyclopeptides which were isolated from Pseudostellaria heterophylla, have been successfully elucidated. The results indicated the sequences of amino acids with NH can be satisfactorily determined by COLOC when the nJ(XH)were 6Hz to 15Hz.