Trimethyl-(2-methylene-cycloheptylmethyl)-ammonium; iodide

2-氧代-1-环庚烷甲酸甲酯

2-methylcycloheptan-1-one

二甲基砜

4,5,6,7,8,9-hexahydro-1H-cyclohept[d][1,2]oxathiin-3-oxide