Identification of major pigments containing D-amino acid units in commercial Monascus pigments
Identification of major pigments containing D-amino acid units in commercial Monascus pigments
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DOI：
10.1248/cpb.45.227
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发表时间：
1997-01-01
影响因子：
1.7
通讯作者：
Yamada, T
中科院分区：
文献类型：
--
作者：
Sato, K;Goda, Y;Yamada, T
已从商业红曲色素中分离出八种主要色素。颜料的结构数据是通过核磁共振、质谱和半合成获得的。这些色素被表征为红曲橙色色素、红曲红素 (1) 和红斑素 (2) 的丙氨酸或天冬氨酸衍生物，具有阿扎菲酮结构。半合成表明，分离的化合物的氨基酸单元是D-型和L-型。
Eight major pigments have been isolated from commercial Monascus pigments. The structural data on the pigments were obtained using NMR, MS, and semisyntheses. The pigments were characterized as alanine or aspartate derivatives of the orange pigments of Monascus, monascorubrin (1) and rubropunctatin (2), which have an azaphilone structure. The semisyntheses revealed that the amino acid units of the isolated compounds were the D-forms as well as the L-forms.