tert-Butyl 2-[4-(3,4-dichlorobenzoyl)-1-piperazinyl]ethylcarbamate 、 三氟乙酸 以
二氯甲烷 为溶剂,
反应 16.0h,
以to give the sub-titled product as an oil (5.9 g)的产率得到[4-(2-Aminoethyl)-1-piperazinyl](3,4-dichlorophenyl)methanone trifluoroacetate
The invention provides compounds of general formula
1
wherein R
1
, m, Q, T, n, R
2
, R
3
, V, W, X and R
4
are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
The invention provides compounds of general formula (I) wherein: R1 represents optionally substituted C¿1?-C12 alkyl or optionally substituted 3- to 10-membered saturated or unsaturated ring system comprising up to two ring carbon atoms that form carbonyl groups and comprising up to 4 ring heteroatoms independently selected from nitrogen, oxygen and sulfur; m is 0-1; Q represents OCH2, C1-C4 alkylene or C2-C4 alkenylene; T represents C(O)NH, or when m is 0, T may additionally represent a bond or NH, or when m is 1 and Q represents C1-C4 alkylene, T may additionally represent NH; n is 1-4; each R?2 and R3¿ independently represents H or C¿1?-C4 alkyl; V represents N, and W represents N or CH; X represents O, C(O), CH(OH), SO2, NH or N(C1-C6 alkyl), provided that when W represents N, then X represents either C(O) or SO2 and when W represents CH, then X is other than SO2; R?4¿ represents optionally substituted phenyl; R?5 and R6¿ each independently represent H, C¿1?-C6 alkyl or hydroxyC1-C6 alkyl, or R?5 and R6¿ together with the nitrogen atom to which they are attached form a 4- to 7-membered saturated heterocyclic ring; R?7 and R8¿ each independently represent H or C¿1?-C6 alkyl; and R?9¿ represents OH or -NR7R8; processes for their preparation, pharmaceutical compositions containing them and their use in therapy.