Reaction ofγ-Hydroxy-N-[1-(dimethylcarbamoyl)ethyl]butanamides under the ‘Direct Amide Cyclization’ Conditions
作者:Boyan Iliev、Anthony Linden、Heinz Heimgartner
DOI:10.1002/hlca.200690008
日期:2006.1
the imino lactones was achieved by increasing the substitution in the five-membered ring, and their structure, in the form of the hydrochlorides, was established independently by X-raycrystallography (Fig. 4). A derivative 15 of the imino lactone 12a was prepared by the reaction with the 2H-azirin-3-amine 10a; its structure was also established by an X-ray crystal-structure determination (Fig. 3).