4-哌啶酮缩乙二醇

8-苄基-1,4-二氧杂-8-氮杂螺[4,5]癸烷

4,4-ethylenedioxy-1-(phenoxycarbonyl)piperidine

1-(2-benzodioxanylcarbonyl)-4,4-ethylenedioxypiperdine