英文别名1-[(4-Methylphenyl)sulfonyl]-3-azetidinone; 3-Azetidinone, 1-[(4-methylphenyl)sulfonyl]-; 1-(4-methylbenzenesulfonyl)azetidin-3-one; N-Tosyl-3-azetidinone; N-(4-Tolylsulfonyl)azetidin-3-one; 1-[(4-Methylphenyl)sulfonyl]azetidin-3-one; N-p-tosyl-3-azetidinone