Identification of Major Pigments Containing D-Amino Acid Units in Commercial Monascus Pigments.

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1997 English Publisher:Pharmaceutical Society of JapanJournal:Chemical and Pharmaceutical Bulletin, volume 45, pages 227-229 (issn: 0009-2363, eissn: 1347-5223,

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Authors: Kyoko SATO; Yukihiro GODA; Shiho SAKAMOTO Sasaki; Hiroshi SHIBATA; Tamio MAITANI; Takashi YAMADA;

doi: 10.1248/cpb.45.227

Identification of Major Pigments Containing D-Amino Acid Units in Commercial Monascus Pigments.

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Abstract

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.

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