Crystal Structure of 5-(l-Menthyloxy)-3-Bromo-4-(R)-(+)-Methylbenzylamino-2(5H)-Furanone

The crystal structure of the title compound 1, C22H30BrNO3, was determined by X-ray analysis at 296(1)K. The crystal belongs to othorhombic system, space group P212121 with a=9.842(5), b=12.510(5), c=17.763(6), V=2187(3) 3, Z=4, Mr=436.37, Dx=1.33 g/cm3, μ=18.79 cm-1, F(000)=912 and the final R=0.047 and Rw=0.053 for 1429 observed reflections with I≥3σ(I). Structure analysis reveals that the absolute configuration at C14 of the acetal carbon of the title compound is S.