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4-(2'-Carboxyphenyl)-4-oxobutyryl Coenzyme A Ester, an Intermediate in Vitamin K2 (Menaquinone) Biosynthesis

4-(2'-Carboxyphenyl)-4-oxobutyryl Coenzyme A Ester, an Intermediate in Vitamin K2 (Menaquinone) Biosynthesis

R Kolkmann, E Leistner

Z Naturforsch C J Biosci. Nov-Dec 1987;42(11-12):1207-14.

PMID: 2966501

Abstract:

Enzyme preparations from Mycobacterium phlei, Escherichia coli and Galium mollugo cell suspension cultures were incubated in the presence of 4-(2'-carboxyphenyl)-4-oxobutyrate (i.e. o-succinylbenzoic acid, OSB, 1), ATP, coenzyme A and Mg2+. The main product isolated from the incubation mixture was 4-(2'-carboxyphenyl)-4-oxobutyryl coenzyme A ester (2) as determined by comparison with synthetic coenzyme A esters. Synthetic and enzymically formed 4-(2'-carboxyphenyl)-4-oxobutyryl coenzyme A ester (2) was shown to be enzymically converted to an intermediate in vitamin K2 biosynthesis viz. 1,4-dihydroxy-2-naphthoic acid (5). The enzymic formation of 2-(3'-Carboxypropionyl)benzoyl coenzyme A ester (3) and 4-(2'-carboxyphenyl)-4-oxobutyryl-di-coenzyme A ester (4) was also observed. They appeared in minor amounts, however. These esters were not convertible to 1,4-dihydroxy-2-naphthoic acid (5).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP4938721	2,4,5-T-2-methylpropyl ester		4938-72-1	Price

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