4-n- substituted 1- (3-methoxypropyl) -4-piperidinyl amine compound and preparation and application

The present invention provides a 4-N- substituted-1- (3-methoxypropyl) -4-piperidinyl amine compound and preparation and application, the 4-N- substituted-1- (3- propyl) -4-piperidinyl amine compound, may be conveniently used for the preparation of key intermediates Prucalopride succinic acid, and succinic acid can be conveniently prepared Prucalopride, to meet the needs of the pharmaceutical industry. 4-N- substituted-1- (3-methoxypropyl) -4-piperidinyl amine compound having the formula (1) compound represented by the free base or salt thereof: