(-)-(1R,2R,3S,4R)-4-(N-tert-butyloxycarbonyl)amino-2,3-dimethylmethylenedioxy-1-(hydroxymethyl)cyclopentane

(1R,2R,3R,4R)-1-tert-butoxycarbonylamino-2-hydroxy-3,6-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)-4-hydroxymethylcyclopentane