Accession Number : AD0718290

Title :   Pulvinamide and Possible Biosynthetic Relationships with Pulvinic Acid,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA HALIFAX (NOVA SCOTIA) ATLANTIC REGIONAL LAB

Personal Author(s) : Maass,W. S. G.

Report Date : 19 MAR 1970

Pagination or Media Count : 7

Abstract : A new pulvinic acid derivative, pulvinamide, has been identified as a constituent of Pseudocyphellaria crocata. With the possibility that pulvinamide is a key biosynthetic intermediate a more detailed pathway for the biogenesis of pulvinic acid and its derivatives is proposed, i.e. stepwise aldol-type of condensation of 1 mole phenylpyruvic acid with 1 mole pyridoxal-bound phenylalanine to give a quinoneimine analogue of polyporic acid which, after oxidative cleavage, would yield bound pulvinamide as the immediate precursor of the free pulvinic acid derivatives. (Author)

Descriptors :   (*BIOSYNTHESIS, *AMIDES), (*LICHENS, BIOSYNTHESIS), FURANS, MASS SPECTROSCOPY, CANADA

Subject Categories : Biochemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE