申请人:——
公开号:US05036153A1
公开(公告)日:1991-07-30
(R,R)-2,5-Diazabicyclo[ 2.2.1]heptanes are prepared from a compound of the formula ##STR1## wherein X and R.sub.2 are as defined herein, by heating with tosylchloride in pyridine, reacting the formed compound of the formula ##STR2## with a C.sub.1 -C.sub.6 alkylamine or ammonia, and reducing or hydrolyzing the formed compound of the formula ##STR3## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.6 alkyl.
(R,R)-2,5-二氮杂双环[2.2.1]庚烷是通过将具有以下结构式的化合物与对甲苯磺酰氯在吡啶中加热,然后将生成的具有以下结构式的化合物与C1-C6烷基胺或氨反应,最后还原或水解生成的具有以下结构式的化合物制备而成:其中X和R2在此处定义,R1为氢或C1-C6烷基。