AMINO-ACIDS AND PEPTIDES .73. WHAT ARE THE STRUCTURES OF FENESTIN-A AND FENESTIN-B

被引：10

作者：

SCHMIDT, U ^{[1
]}

LIEBERKNECHT, A ^{[1
]}

KAZMAIER, U ^{[1
]}

HASLINGER, E ^{[1
]}

机构：

[1] UNIV BAYREUTH,INST ORGAN CHEM,W-8580 BAYREUTH,GERMANY

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1990年 / 29卷 / 05期

关键词：

D O I：

10.1002/anie.199005141

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

1H NMR signals at unusually high field (δ = 3.9–4.1 rather than 4.0–4.6 as in known cyclopeptides) render the proposed structures 1 and 2 unlikely for fenestin A and fenestin B, two cyclopeptides isolated from Pacific sponges. Synthesis and analysis of the postulated compound 2 as well as the dimer of 1 have made it possible to show that the suggested structure for fenestin B is wrong, while that for fenestin A must at least be regarded as questionable. (Formula Presented.) Copyright © 1990 by VCH Verlagsgesellschaft mbH, Germany

引用

页码：514 / 515

页数：2

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