Journal of the Chemical Society. Chemical communications p. 917 - 919 (1981)
Update date:2022-08-11
Topics:
Bahadur, Gulam
Baldwin, Jack E.
Field, Leslie D.
Lehtonen, Eeva-M. M.
Usher, John J.
et al.
The cell-free conversion of δ-(L-aminoadipyl)-L-cysteinyl-D-(-)-isoleucine (1b) into a penicillin (2b) was observed directly by 1H n.m.r. spectroscopy and the thiazolidine ring formation was shown to occur with retention of stereochemistry at C-3 of the isoleucinyl residue by 1H nuclear Overhauser enhancement studies of the product penicillin in the deproteinated incubation mixture.
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