(2011/02/24)
1-[[3,3-dimethyl-4-(3-phenoxysulfonylpropylsulfonyloxy)butyl]carbamoyloxy]ethyl 2-methylpropanoate
ethyl (2R)-2-benzyloxy-3,3-dimethyl-4-(3-phenoxysulfonylpropylsulfonyloxy)butanoate
1-[(3R)-3-benzyloxy-2,2-dimethyl-4-oxo-butyl]-phenyl propane-1,3-disulfonate
(2R)-2-benzyloxy-3,3-dimethyl-4-(3-phenoxysulfonylpropylsulfonyloxy)butanoic acid
1-isopropoxycarbonyloxyethyl(2R)-2-benzyloxy-3,3-dimethyl-4-(3-phenoxysulfonylpropyl sulfonyloxy)butanoate