N-{4-Bromo-2-[(S)-menthyloxy]-5-oxo-2,5-dihydro-3-furyl}-l-valine
oleh: Xiu-Mei Song, Zhao-Yang Li, Zhao-Yang Wang, Jian-Hua Fu
| Format: | Article |
|---|---|
| Diterbitkan: | International Union of Crystallography 2009-08-01 |
Deskripsi
The title compound, C19H30BrNO5, was obtained via a tandem asymmetric Michael addition–elimination reaction of 3,4-dibromo-5-[(S)-l-menthyloxy]furan-2(5H)-one and l-valine in the presence of potassium hydroxide. The molecular structure contains an approximately planar (r.m.s. deviation = 0.0204 Å) five-membered furanone ring and a six-membered menthyloxy ring adopting a chair conformation. The crystal packing is stabilized by intermolecular O—H...O and N—H...O hydrogen bonding.