基于3,4-二氢-2 H-吡嗪并[1,2- a ]吲哚-1-酮骨架的强效选择性组胺H 3受体反向激动剂的发现
摘要:
已经发现了基于3,4-二氢-2 H-吡嗪并[1,2 - a ]吲哚-1-酮骨架的一系列新的强组胺H 3受体反向激动剂。几种化合物显示出对其他组胺受体亚型的高选择性,并具有良好的理化特性,对CYP450酶的抑制作用低以及微粒体制剂中的高代谢稳定性。(- [R)-2-环丙基甲基-8-(1-异丙基-哌啶-4-基氧基)-3-甲基-3,4-二氢-2 H ^ -吡嗪并[1,2一]吲哚-1-酮(8吨)口服后在急性大鼠成水模型中表现出良好的体内功效。
Scaffold Hopping of Natural Product Evodiamine: Discovery of a Novel Antitumor Scaffold with Excellent Potency against Colon Cancer
摘要:
Inspired by the natural product evodiamine, a novel antitumor indolopyrazinoquinazolinone scaffold was designed by scaffold hopping. Structure-activity relationship studies led to the discovery of compound 15j, which shows low nanomolar inhibitory activity against the HCT116 cell line. Further antitumor mechanism studies indicated that compound 15j acted by the dual inhibition of topoisomerase 1 and tubulin and induced apoptosis with G2 cell-cycle arrest. The quaternary ammonium salt of compound 15j (compound 15js) exhibited excellent in vivo antitumor activity (TGI = 66.6%) in the HCT116 xenograft model with low toxicity. Indolopyrazinoquinazolinone derivatives represent promising multitargeting antitumor leads for the development of novel antitumor agents.
The present invention relates to compounds of formula I
wherein A, G, r and R
1
to R
5
are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prevention of diseases which are associated with the modulation of H3 receptors.
Tricyclic amide derivatives as modulators of H3 receptors
申请人:Hoffmann-La Roche Inc.
公开号:US07786109B2
公开(公告)日:2010-08-31
The present invention relates to compounds of formula I
wherein A, G, r and R1 to R5 are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prevention of diseases which are associated with the modulation of H3 receptors such as, for example, diabetes mellitus.
The present invention relates to compounds of formula I
wherein A, G, r and R
1
to R
5
are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prevention of diseases which are associated with the modulation of H3 receptors.