A New Method for Removal of Modified Trityl and Pixyl Groups by Use of an Acid Species Generated by Reaction of Diethyl Oxomalonate with Methanol
摘要:
Diethyl oxomalonate (DEOM) was found to exhibit unique properties as a new type of detritylating reagent in the presence of methanol. A variety of deoxyribonucleoside derivatives protected with modified trityl groups were allowed to react with DEOM. The ease of detritylation highly depended on the basicity of protected bases of adenine, guanine and cytosine. Inhibitory effects of various amines possessing the pKa values between 0.79-10.87 on the present detritylation were studied. Several mechanistic considerations were alsb discussed on the basis of H-1 and C-13 NMR studies of the DEOM-Methanol adduct.
therapeutics. We used molecular modeling-assisted structural optimization starting with the low micromolar potency compound 9 to discover compound 13c, a highly potent and orallybioavailable Axl inhibitor. Selectivity profiling showed that 13c could inhibit the well-known oncogenic kinase Met with equal potency to its inhibition of Axl superfamily kinases. Compound 13c significantly inhibited cellular Axl and
受体酪氨酸激酶 Axl 在促进癌症进展、转移和耐药性中发挥重要作用,并已被确定为抗癌治疗的有希望的靶点。我们从低微摩尔效力化合物9开始,使用分子建模辅助结构优化来发现化合物13c ,这是一种高效且可口服生物利用的 Axl 抑制剂。选择性分析表明, 13c可以抑制众所周知的致癌激酶 Met,其抑制 Axl 超家族激酶的效力相同。化合物13c显着抑制细胞Axl和Met信号传导,抑制Axl和Met驱动的细胞增殖,并抑制Gas6/Axl介导的癌细胞迁移或侵袭。此外, 13c在 Axl 驱动和 Met 驱动的肿瘤异种移植模型中表现出显着的抗肿瘤功效,在耐受良好的剂量下导致肿瘤停滞或消退。所有这些有利的数据使13c成为癌症治疗的有前途的候选药物。
Sulfonamides having antiangiogenic and anticancer activity
申请人:——
公开号:US20040157836A1
公开(公告)日:2004-08-12
Compounds having methionine aminopeptidase-2 inhibitory (MetAP2) are described. Also described are pharmaceutical compositions comprising the compounds, methods of treatment using the compounds, methods of inhibiting angiogenesis, and methods of treating cancer.
enhancement: The X‐ray crystal structure of an arylmalonatedecarboxylase (AMDase) with a mechanism‐based inhibitor bound to an active‐site dioxyanion hole provides insight into the mechanism of this intriguing enzyme. The structure also guided the extension of the AMDase biocatalytic repertoire to include a wide range of α‐alkenyl as well as α‐arylmalonates.
[EN] 2-HETEROARYL-3-OXO-2,3-DIHYDROPYRIDAZINE-4-CARBOXAMIDES FOR THE TREATMENT OF CANCER<br/>[FR] 2-HÉTÉROARYL-3-OXO-2,3-DIHYDROPYRIDAZINE-4-CARBOXAMIDES POUR LE TRAITEMENT DU CANCER
申请人:BAYER AG
公开号:WO2018146010A1
公开(公告)日:2018-08-16
The present invention covers 2-heteroaryl-3-oxo-2,3-dihydropyridazine-4-carboxamide compounds of general formula (I), in which X, R1, R2, R3, R4 and R5 are as defined herein, methods of preparing said compounds, intermediate compounds useful for preparing said compounds, pharmaceutical compositions and combinations comprising said compounds and the use of said compounds for manufacturing pharmaceutical compositions for the treatment or prophylaxis of diseases, in particular of cancer or conditions with dysregulated immune responses or other disorders associated with aberrant AHR signaling, as a sole agent or in combination with other active ingredients.