Synthesis of δ--α-aminoadipoyl--cysteinyl--allylglycine, and eight deuterated analogues, substrates for the investigation of the mechanism of action of isopenicillin n synthase.
摘要:
The synthesis of delta-L-alpha-aminoadipoyl-L-cysteinyl-D-allylglycine (1a) from its component amino acids is described, along with the synthesis of eight analogues (1b-i) specifically deuterated at C-3 and/or C-5 of the allylglycine residue.
Evidence for epoxide formation from isopenicillin N synthase
作者:Jack E. Baldwin、Robert M. Adlington、M. Bradley、N. J. Turner、A. R. Pitt
DOI:10.1039/c39890000978
日期:——
Isolation of a new β-lactam-containing metabolite, from incubation of the three deuteriated tripeptides (1b–d) with isopencillin Nsynthase (IPNS) has provided evidence of an epoxide type intermediate; a unified mechanism is proposed for the formation of products by IPNS from unsaturated precursors.