Ring-deactivated hydroxymethylpyrroles as inhibitors of α-chymotrypsin
摘要:
N-Acyl and N-sulfonylhydroxymetyhylpyrroles have been synthesised and shown to inhibit alpha -chymotrypsin. A hydrophobic group in the N-substituent has been shown to be required for activity. O 2001 Elsevier Science Ltd. All rights reserved.
Ring-deactivated hydroxymethylpyrroles as inhibitors of α-chymotrypsin
摘要:
N-Acyl and N-sulfonylhydroxymetyhylpyrroles have been synthesised and shown to inhibit alpha -chymotrypsin. A hydrophobic group in the N-substituent has been shown to be required for activity. O 2001 Elsevier Science Ltd. All rights reserved.
作者:Steven M. Allin、William R.S. Barton、W. Russell Bowman、Emma Bridge (née Mann)、Mark R.J. Elsegood、Tom McInally、Vickie McKee
DOI:10.1016/j.tet.2008.06.014
日期:2008.8
Alkyl radicals have been cyclised onto pyrroles, imidazoles and pyrazoles, and acyl radicals cyclised onto pyrroles, using Bu3SnH-, (TMS)3SiH- and Bu3GeH-mediated aromatic homolytic substitution for the synthesis of bicyclic N-heterocycles. The reactions yield intermediate π-radicals that lose hydrogen in the rearomatisation step of the aromatic homolytic substitution. Mechanistic studies of these