2-[(2S,3R,4R,5S)-1-Benzyl-3,4-bis-benzyloxy-5-(4-methoxy-phenoxymethyl)-pyrrolidin-2-yl]-thiazole

(Z)-3-[(2R,3R,4R,5S)-1-Benzyl-3,4-bis-benzyloxy-5-(4-methoxy-phenoxymethyl)-pyrrolidin-2-yl]-2-benzyloxycarbonylamino-acrylic acid methyl ester