The structure of cinchonhydrines — the derivatives of cinchonine
作者:Jacek Thiel
DOI:10.1016/0022-2860(93)07945-s
日期:1994.3
Abstract Cinchonhydrines, to which formulae 5 had been previously ascribed, appeared to be the analogs of known niquidine/niquine derivatives of cinchonaalkaloids. Their structures 6 and 7 , determined mainly by means of NMR techniques, point to a formal loss of the C2 carbon atom from the quinuclidine moiety of the parent cinchonine ( 1c ).