Ontology highlight
ABSTRACT:
SUBMITTER: Maharramov AM
PROVIDER: S-EPMC3051672 | biostudies-literature | 2011 Jan
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20110108 Pt 2
The title mol-ecule, C(21)H(30)N(2)O(5), is chiral with four stereogenic centres. The crystal is a racemate and consists of enanti-omeric pairs with the relative configuration rac-(6S*,7R*,8R*,9S*). The ethyl fragment of the eth-oxy-carbonyl group at position 6 is disordered in a 0.46 (3):0.54 (3) ratio. The crystal structure features inter-molecular N-H⋯O. Intra-molecular O-H⋯N and N-H⋯O hydrogen bonds also occur. ...[more]