title: 3-O-Benzhydryl-2,5-dide-oxy-2,5-imino-2-C-methyl-l-lyxono-1,4-lactone.
abstract: 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.
authors.forename: Filipa P
authors.initials: FP
authors.lastname: da Cruz
authors.forename: K Victoria
authors.initials: KV
authors.lastname: Booth
authors.forename: George W J
authors.initials: GW
authors.lastname: Fleet
authors.forename: David J
authors.initials: DJ
authors.lastname: Watkin