Abstract
The ketone (+/-)-5, which embodies the bicyclic core associated with the title tRNA synthetase inhibitors 1 and 2, has been prepared via a three-component coupling reaction involving 2-(hydroxymethyl)cyclopent-2-enone (15), methylamine (6) and propiolamide (10); straightforward elaboration of the readily derived acetates (-)-21 and (+)-21 has provided the biologically active analogues 23 and 24, respectively, of the title compounds.
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