被囊动物的类胡萝卜素。III. 两种新的海洋类胡萝卜素——amarouciaxanthin A和B的结构解析

Carotenoids of tunicates. III. The structural elucidation of two new marine carotenoids, amarouciaxanthin A and B.

作者信息

Matsuno T, Ookubo M, Komori T

出版信息

J Nat Prod. 1985 Jul-Aug;48(4):606-13. doi: 10.1021/np50040a015.

Abstract

The structure of two new marine carotenoids, isolated from the tunicate, Amaroucium pliciferum, and designated as amarouciaxanthin A and B, were determined on the basis of chemical and spectral data. Amarouciaxanthin A was determined as (6S, 3'S, 5'R,6'R)- 6,3',5'-trihydroxy-4,5,6',7'-tetradehydro-7,8,5',6'-tetrahydro-beta, beta-carotene-3,8-dione, and Amarouciaxanthin B was determined as (6S,3'R)-6,3'-dihydroxy-4,5,7',8'-tetradehydro-7,8-dihydro-beta,beta- carotene-3,8-dione. These two compounds are also presumed to be new metabolic products of a typical marine carotenoid, fucoxanthin.

摘要

从被囊动物皱波角海鞘（Amaroucium pliciferum）中分离出两种新的海洋类胡萝卜素，分别命名为海鞘黄质A和B。基于化学和光谱数据确定了它们的结构。海鞘黄质A被确定为(6S, 3'S, 5'R,6'R)- 6,3',5'-三羟基-4,5,6',7'-四脱氢-7,8,5',6'-四氢-β,β-胡萝卜素-3,8-二酮，海鞘黄质B被确定为(6S,3'R)-6,3'-二羟基-4,5,7',8'-四脱氢-7,8-二氢-β,β-胡萝卜素-3,8-二酮。这两种化合物也被推测为典型海洋类胡萝卜素岩藻黄质的新代谢产物。