title: N-{4-Bromo-2-[(S)-menth-yloxy]-5-oxo-2,5-dihydro-3-fur-yl}-l-valine.
abstract: The title compound, C(19)H(30)BrNO(5), was obtained via a tandem asymmetric Michael addition-elimination reaction of 3,4-dibromo-5-[(S)-l-menth-yloxy]furan-2(5H)-one and l-valine in the presence of potassium hydroxide. The mol-ecular structure contains an approximately planar (r.m.s. deviation = 0.0204 Å) five-membered furan-one ring and a six-membered menth-yloxy ring adopting a chair conformation. The crystal packing is stabilized by inter-molecular O-H⋯O and N-H⋯O hydrogen bonding.
authors.affiliation: School of Chemistry and the Environment, South China Normal University, Guangzhou 510006, People's Republic of China.
authors.forename: Xiu-Mei
authors.initials: XM
authors.lastname: Song
authors.forename: Zhao-Yang
authors.initials: ZY
authors.lastname: Li
authors.forename: Zhao-Yang
authors.initials: ZY
authors.lastname: Wang
authors.forename: Jian-Hua
authors.initials: JH
authors.lastname: Fu