butyl,hydroxypropyl,azetidine,carboxylate
Azetidine
93891-84-0tetrabutylammonio, salt with trans-3-[[benzyloxycarbonyl]amino]-2-methyl-4-oxoazetidine-1-sulphonic acid (1:1)
204589-80-0Methyl (3R,4S)-1-(4-fluorophenyl)-2-oxo-4-[4-(phenylmethoxy)phenyl]-3-azetidinepropanoate