Compounds of formulae (IV) and (VIII) are disclosed, as are methods for their preparation:
wherein Y' is CL' and V' is N; or Y' is CL' and V' is CR2;
and L' is a suitable leaving group;
Y" is CT and V" is N; or Y" is CT and V" is CR2;
T is an appropriately functionalised group;
R2 is hydrogen, C1-4 alkoxy or halo;
R3 is selected from a group comprising benzyl, halo-, dihalo- and trihalobenzyl, benzoyl, pyridylmethyl, pyridylmethoxy, phenoxy, benzyloxy, halo-, dihalo- and trihalobenzyloxy and benzenesulphonyl;
R4 is halo or C1-4 alkoxy or is not present;
wherein either (a) R3 represents 3-fluorobenzyloxy; and/or (b) R4 is selected from halo and is substituted in the 3-position of the phenyl ring;
and halo represents fluoro, chloro or bromo.
The compounds are intermediates in the preparation of bicyclic heteroaromatic compounds, which are protein tyrosine kinase inhibitors useful in the treatment of inter alia cancer and malignant tumours.
公开了式 (IV) 和 (VIII) 的化合物及其制备方法:
其中 Y'是 CL',V'是 N;或 Y'是 CL',V'是 CR2;
L' 是合适的离去基团;
Y "是CT,V "是N;或Y "是CT,V "是CR2;
T 是适当官能化的基团;
R2 是氢、C1-4 烷氧基或卤代;
R3 选自包括苄基、卤代、二卤代和三卤代苄基、苯甲酰基、
吡啶甲基、
吡啶甲氧基、苯氧基、苄氧基、卤代、二卤代和三卤代苄氧基以及苯磺酰基的基团;
R4 为卤代或 C1-4 烷氧基或不存在;
其中(a)R3 代表 3-
氟苄氧基;和/或(b)R4 选自卤代并在苯环的 3 位被取代;
卤代物代表
氟、
氯或
溴。
这些化合物是制备双环杂芳香族化合物的中间体,双环杂芳香族化合物是
蛋白酪氨酸激酶抑制剂,可用于治疗癌症和恶性肿瘤等。