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3β,19-Dihydroxyurs-12-en-28-oic acid methyl ester;3β,19α-Dihydroxyurs-12-ene-28-oic acid methyl ester;Benthamic acid methyl ester;Methyl benthamate;Methyl pomolate;Randialic acid A methyl ester
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2-苯基-3-(苯基甲基)吡咯烷