(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]庚烷是通过将式子中X和R2定义的化合物与
对甲苯磺酰氯在
吡啶中加热,然后用C1-C6烷基胺或
氨反应生成式子中定义的化合物,最后还原或
水解生成式子中R1为氢或C1-C6烷基的化合物制备而成。