Synthesis of dioxatricyclic segments of dictyoxetane. Oxygenated 6,8-dimethyl-2,7-dioxatricyclo[4.2.1.03,8]nonanes show antitumor activity
摘要:
Starting from 1,1-bisbenzyloxy propanone four oxetanes A, B, C and D representing the dioxatricyclic core of dictyoxetane were synthesized. All of them show a cytotoxic/cytostatic effect using a human gastric carcinoma and a human heptocellular cell line. The activity is comparable to that of 5-fluorouracil. (C) 1998 Elsevier Science Ltd. All rights reserved.
Oxazatricyclic Noradamantanes: Stereocontrolled Synthesis of Functionalized Scopolines, Related Cage Molecules, and Drug Leads
作者:María Vidal Pascual、Steffen Proemmel、Winfried Beil、Rudolf Wartchow、H. M. R. Hoffmann
DOI:10.1021/ol048603t
日期:2004.11.1
Scopolines 4 and the noradamantane scaffold are accessible from8-oxabicyclo[3.2.1]oct-6-en-3-ones such as 6 by a concise route involving introduction of an axial amino nitrogen at C3, epoxidation, and cyclization. The resulting cage molecules are versatile drug leads.