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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Conformational Studies of Some Piperazine-2,5-Diones: Crystal Structures of Three Isomeric Forms of Methylanhydropicroroccellin (Derivative of a Lichen Diketopiperazine) and a Derivative Bromohydrin

M Sterns, JM Patrick, VA Patrick and AH White

Australian Journal of Chemistry 42(3) 349 - 364
Published: 1989

Abstract

Single-crystal X-ray structure determinations have been carried out on three isomeric forms of the lichen diketopiperazine metabolite methylanhydropicroroccellin , C21H22N2O3, and a related bromohydrin , C20Hl9BrN2O3; all are based on a 6-benzyl-3-benzylidene-1,4- dimethylpiperazine-2,5-dione but differ in the substituents on the α and β carbons at position 6, enabling comparison of the resulting variation in conformation.

https://doi.org/10.1071/CH9890349

© CSIRO 1989

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