Natural Products
Full Access
ChemInform Abstract: (+)-3-Oxoglycyrrhetinic Acid: Catemeric Hydrogen Bonding in a Non-racemic Triterpenoid Diketo Acid.
First published: 10 June 2010
Abstract
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract
All rings of title compound (I) adopt chair conformation, except the enone ring, which is flattened to a half-chair. In solid state, (I) adopts carboxyl-to-ketone catemeric hydrogen bonding, i.e. distorted hydrogen bonds from the carboxyl H atom of one molecule to the remote-ring ketone O atom of a screw-related neighbor yield helical hydrogen-bonding chains.
