Catalytic enantioselective [2,3] Stevens and Sommelet-Hauser rearrangements of α-diazo pyrazoleamides with sulfides were achieved by utilizing chiral N,N'-dioxide/nickel(II ) complex catalysts. These rearrangements proceeded well under mild reaction conditions, providing rapid and facile access to a series of functionalized 1,6-dicarbonyls or sulfane-substituted phenylacetates with high to excellent
The present invention relates to compounds of general formula (I), processes for their preparation, pharmaceutical compositions containing them as well as their use for the production of pharmaceutical compositions for the treatment of inflammatory diseases.
1
Here we present the synthesis of a series of IDO1 inhibitors with the novel isoxazolo[5,4-d]pyrimidin-4(5H)-one scaffold. A focused library was prepared using a 6- or 7-step synthetic procedure to allow a systematic investigation of the structure-activity relationships of the described scaffold. Chemistry-driven modifications lead us to the discovery of our best-in-class inhibitors possessing p-trifluoromethyl
吲哚胺2,3-二加氧酶1(IDO1)是几种病理状况,尤其是癌症的免疫调节中的有希望的目标。在这里,我们目前与新型异恶唑并[5,4 - d ]嘧啶-4(5 H)-一个支架的一系列IDO1抑制剂的合成。使用6步或7步合成程序制备了一个有针对性的文库,以系统地研究所述支架的构效关系。化学驱动的修改导致我们我们具有最佳的类抑制剂的发现p三氟甲基(23),p -环己基(32),或p甲氧基羰基(20,39)IC 50值在低微摩尔范围内的取代苯胺部分。除hIDO1以外,还测试了化合物对吲哚胺2,3-双加氧酶2和色氨酸双加氧酶的抑制作用,发现它们对hIDO1具有选择性。因此,我们的结果证明了对IDO1选择性异恶唑并[5,4- d ]嘧啶4(5 H)-one抑制剂的成功研究,它定义了一种有前途的化学探针,并带有用于进一步开发强效小分子免疫调节剂的新型支架。
The present invention relates to compounds of the general formula (I), their preparation and use as pharmaceutical compositions asintegrin antagonists, especially as α
4
β and/or α
4
β
7 ?and/or α
9
β
1
intergrin antagonists and in particular for the production of pharmaceutical compositions suitable for the inhibition or the prevention of cell adhesion and cell-adhesion mediated disorders. Examples are the treatment and the prophylaxis of atherosclerosis, asthma, chronic obstructive pulmonary disease (COPD), allergies, diabetes, inflammatory bowel disease, multiple sclerosis, myocardial ischemia, rheumatoid arthritis, transplant rejection and other inflammatory, autoimmune and immune disorders.