Presidents: T. Gilat (Israel), H. Fromm (USA). Plenary sessions. Epidemiology and natural history;pathogenesis; clinical aspects; treatment of gallbladder stones;treatment of biliary tract stones; future prospects.Re...Presidents: T. Gilat (Israel), H. Fromm (USA). Plenary sessions. Epidemiology and natural history;pathogenesis; clinical aspects; treatment of gallbladder stones;treatment of biliary tract stones; future prospects.Research workshops. Modulation of biliary lipid composition, cholesterol complexes in bile, nucleation and crystallization of cholesterol, biomineralization and stone formation, lithogenic events in the gallbladder. Poster sessions information. Gallstone conference secretariat, Peltours-Te’um Congress Organisers, P.O.B. 8388, Jerusalem 91082, Israel. Fax: (972 2) 637572, Tel: (972 2) 617402展开更多
The synthesis of 14-epi-19-nor-22-oxa-1α,25（OH）2D3 5 was started from diol 8 via Fall＇s method, oxidation, epimerization, protection, coupling with the 19-nor-A-ring 7, and then deprotection of the hydroxyl functi...The synthesis of 14-epi-19-nor-22-oxa-1α,25（OH）2D3 5 was started from diol 8 via Fall＇s method, oxidation, epimerization, protection, coupling with the 19-nor-A-ring 7, and then deprotection of the hydroxyl functions.展开更多
文摘The synthesis of 14-epi-19-nor-22-oxa-1α,25（OH）2D3 5 was started from diol 8 via Fall＇s method, oxidation, epimerization, protection, coupling with the 19-nor-A-ring 7, and then deprotection of the hydroxyl functions.
