-
(2R,3S,4R,7S,8R,8aS)-3,4-Bis-benzyloxy-2-benzyloxymethyl-8-tert-butoxycarbonylamino-3,4,6,7,8,8a-hexahydro-2H-chromene-7-carboxylic acid ethyl ester
-
(2R,3R,4R,7R,8S,8aR)-3,4-Bis-benzyloxy-2-benzyloxymethyl-8-tert-butoxycarbonylamino-3,4,6,7,8,8a-hexahydro-2H-chromene-7-carboxylic acid ethyl ester
-