A trisaccharide analogue of moenomycin A, 9a, has been synthesized and has found to be antibiotically inactive. This compound differs from an active compound, 9b, solely by the exchange NHAc→OH in unit C. A binding model for moenomycin-type transglycosylase inhibitors at the enzyme penicillin binding protein is proposed.
Structural analogues of the antibiotic moenomycin a with a D-glucose-derived unit F
作者:Monika Heuer、Karsten Hohgardt、Frauke Heinemann、Harald Kühne、Wolfgang Dietrich、Detlef Grzelak、Dietrich Müller、Peter Welzel、Astrid Markus、Yveline van Heijenoort、Jean van Heijenoort
DOI:10.1016/s0040-4020(01)85066-3
日期:1994.2
Disaccharide derivative 1a is the smallest transglycosylase inhibiting compound known up to now. Structurally closely related compounds 11b and 19c have been synthesized. They do not inhibit the transglycosylase demonstrating the high specificity of the interaction between inhibitor 1a and the binding-site at the enzyme.
Moenomycin A: The role of the methyl group in the moenuronamide unit and a general discussion of structure-activity relationships
作者:Naser El-Abadla、Maxime Lampilas、Lothar Hennig、Matthias Findeisen、Peter Welzel、Dietrich Müller、Astrid Markus、Jean van Heijenoort
DOI:10.1016/s0040-4020(98)01063-1
日期:1999.1
Two disaccharide analogues 1b and 17a of moenomycin A have been synthesized and their antibiotic and transglycosylase-inhibiting properties have been determined. The results permit for the first time to arrive at a general view of the structural requirements in this class of compounds necessary to elicit antibiotic activity. (C) 1998 Elsevier Science Ltd. All rights reserved.