Abstract
Title dilactam diacid 1 has been synthesised and resolved into enantiomers via diastereomeric salts 2 with a chiral amine; the absolute configuration of (1R,4R)-(–)-1 was established by decarboxylation and transformation into the parent dilactam (1R,4R)-(–)-C ; the molecular and crystal structures of (±)-1 and (–)-1 (space groups P21/n and P21, respectively) were determined.
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