SEARCH Articles Figures Tables Azetidin-2-one 4-carboxylic acids Azetidine Azetidine 2-carboxylic acid Azetidine carboxylate Azetidine carboxylate Azetidine-2-carboxylic acid structure L-Azetidine-2-carboxylic acid Trimethylsilyl azetidin-2-one-4-carboxylate