对环己酮甲酸乙酯

2-(1,4-dioxaspiro[4.5]decan-8-ylidene)ethoxymethoxy-trimethylsilane

8-[(S)-羟基[4-苄基氧基苯基]甲基]-1,4-二氧杂螺[4.5]癸烷-8-羧酸乙酯