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(2007/10/02)3,3-dimethyl-4,4-(ethylenedioxy)-1-butanol
3,3-dimethyl-4,4-(ethylenedioxy)-1-butanal
(Diethoxy-phosphoryl)-[3-[1,3]dioxolan-2-yl-3-methyl-2-methylene-but-(Z)-ylideneamino]-acetic acid methyl ester
(+/-)-1-methylene-2,2-dimethyl-4-carbomethoxy-7-azido-1-carbacephem
(6S,7R)-7-Amino-4,4-dimethyl-5-methylene-8-oxo-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester