633327-10-3Relevant academic research and scientific papers
2. 4 - difluoro - 5 - (phthalazinone - 1 - methyl) - benzoyl piperazine compound and use thereof
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, (2017/04/22)
The invention relates to a 2,4-difluoro-5-(phthalazone-1-methyl)-benzoyl piperazine compound and application of the 2,4-difluoro-5-(phthalazone-1-methyl)-benzoyl piperazine compound. Specifically, the invention discloses a compound of the structure shown in the formula I, wherein the definition of the compound of the structure shown in the formula I can be seen in the specification. The compound has the excellent PARP activity inhibitory effect and the excellent antitumor effect.
Discovery of potent 2,4-difluoro-linker poly(ADPribose) polymerase 1 inhibitors with enhanced water solubility and in vivo anticancer efficacy
Chen, Wen-Hua,Song, Shan-Shan,Qi, Ming-Hui,Huan, Xia-Juan,Wang, Ying-Qing,Jiang, Hualiang,Ding, Jian,Ren, Guo-Bin,Miao, Ze-Hong,Li, Jian
, p. 1521 - 1532 (2017/11/09)
Poly (ADP-ribose) polymerase 1 (PARP1) is overexpressed in a variety of cancers, especially in breast and ovarian cancers; tumor cells that are deficient in breast cancer gene 1/2 (BRCA1/2) are highly sensitive to PARP1 inhibition. In this study, we identified a series of 2,4-difluorophenyl-linker analogs (15-55) derived from olaparib as novel PARP1 inhibitors. Four potent analogs 17, 43, 47, and 50 (IC50=2.2-4.4 nmol/L) effectively inhibited the proliferation of Chinese hamster lung fibroblast V-C8 cells (IC50=3.2-37.6 nmol/L) in vitro, and showed specificity toward BRCA-deficient cells (SI=40-510). The corresponding hydrochloride salts 56 and 57 (based on 43 and 47) were highly water soluble in pH=1.0 buffered salt solutions (1628.2 μg/mL, 2652.5 μg/mL). In a BRCA1-mutated xenograft model, oral administration of compound 56 (30 m?kg-1d-1, for 21 d) exhibited more prominent tumor growth inhibition (96.6%) compared with the same dose of olaparib (56.3%); in a BRCA2-mutated xenograft model, oral administration of analog 43 (10 m?kg-1d-1, for 28 d) significantly inhibited tumor growth (69.0%) and had no negative effects on the body weights. Additionally, compound 56 exhibited good oral bioavailability (F=32.2%), similar to that of olaparib (F=45.4%). Furthermore, the free base 43 of the hydrochloride salt 56 exhibited minimal hERG inhibition activity (IC50=6.64 μmol/L). Collectively, these data demonstrate that compound 56 may be an excellent drug candidate for the treatment of cancer, particularly BRCA-deficient tumors.
PYRAZOLE COMPOUND AND MEDICINAL COMPOSITION CONTAINING THE SAME
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Page/Page column 84-85, (2008/06/13)
The present invention provides a novel compound having an excellent JNK inhibitory effect. That is, it provides a compound represented by the following formula, a salt thereof or a hydrate of them. Wherein R1 designates -(CO)h-(NRa)j-(CRb=CRc)k-Ar (wherein Ra, Rb and Rc each independently designate a hydrogen atom, a halogen atom, hydroxyl group, an optionally substituted C1-6 alkyl group or the like; Cy designates a 5- or 6-membered heteroaryl; and V each independently designate the formula -L-X-Y (wherein L designates a single bond, an optionally substituted C1-6 alkylene group or the like; X designates a single bond or the formula -A- (wherein A designates NR2, O, CO, S, SO or SO2) and so on; and Y designates a hydrogen atom, a halogen atom, nitro group or the like).
