The title bicyclic lactone, C(19)H(19)NO(3), is an inter-mediate in the synthesis of chiral α-methyl-prolines and branched C-methyl pyrrolidines; the absolute configuration was determined by the use of d-erythronolactone as the starting material. It exhibits no unusual crystal packing features, and each mol-ecule acts as a donor and acceptor for one C-H⋯O hydrogen bond.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2959362 | PMC |
| http://dx.doi.org/10.1107/S1600536808027888 | DOI Listing |
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