Palladium-catalyzed amination in the synthesis of nitrogen and oxygen heterocycles containing fragments of cholane and quinoline

By Mitsunobu reaction from 3,24-cholanediol and 2-hydroxy-8-chloroquinoline 24-(8-chloroquinolinyl-2-oxy)cholan-3-ol and 3,24-di(8-chloroquinolinyl-2-oxy)cholane were synthesized. These compounds were brought into reactions of palladium-catalyzed amination with propanediamine, oxaalkane diamines, and N,N ′-bis(3-aminopropyl)ethylenediamine to obtain macrocycles of various structures, linear mono- and bis(steroid) derivatives of trioxaalkane diamine, and also cholane bis(oxaalkandiamine) derivative. The dependence was demonstrated of macrocyles and cyclooligomers yield on the polyamine nature. 4-Hydroxy-7-chloroquinoline afforded only 24-(7-chloroquinolinyl-4-oxy)cholan-3-ol.