... III.“ Synthesis and Anticholinergic Activity of 4-Acyloxy-1-(1,3-dioxolan—2-ylmethyl)piperidines and Their Quaternary Salts” SABURO SUGAI,* YOSHIHIRO HASEGAWA, YOSHIO KAJIWARA, SEIICHIRO YOSHIDA, and ... 3) Part I: S. Sugai, H. Ikawa, Y. Hasegawa, S. Yoshida ...