(-)-(1R, 2S, 3R, 4R)-tert-butyl N-[2,3-dihydroxy-4-(hydroxymethyl)-1-cyclopentyl] carbamate

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