Synonyms: | Spiro[azetidine-3,1'(3'H)-isobenzofuran]-1-carboxylic acid, 5'-acetyl-, 1,1-diMethylethyl ester;tert-butyl 5'-acetyl-3'H-spiro[azetidine-3,1'-[2]benzofuran]-1-carboxylate;tert-Butyl 5'-acetyl-3'H-spiro[azetidine-3,1'-isobenzofuran]-1-carboxylate |