NEW INTERMEDIATES OF PHAEOMELANOGENESIS INVITRO BEYOND THE 1,4-BENZOTHIAZINE STAGE

被引：17

作者：

COSTANTINI, C

CRESCENZI, O

PROTA, G

PALUMBO, A

机构：

[1] UNIV NAPLES, DIPARTIMENTO CHIM ORGAN & BIOL, VIA MEZZOCANNONE 16, I-80134 NAPLES, ITALY

[2] Staz Zool Anton Dohrn, NAPLES, ITALY

来源：

TETRAHEDRON | 1990年 / 46卷 / 19期

关键词：

D O I：

10.1016/S0040-4020(01)87870-4

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

: Enzymic oxidation of 5-cystein-S-yldopa (1) leads to a complex mixture of oligomeric products, two of which were isolated by preparative HPLC and identified as diastereomers corresponding to the gross structure 5. Under acidic conditions, both compounds are rapidly converted into trichochrome F (11), a †2-2bi-(2H-1,4-benzothiazine) pigment previously isolated by extraction of red hair and feathers. © 1990.

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页码：6831 / 6838

页数：8

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