Highly Enantioselective Aza Morita−Baylis−Hillman Reaction Catalyzed by Bifunctional β-Isocupreidine Derivatives
作者:Nacim Abermil、Géraldine Masson、Jieping Zhu
DOI:10.1021/ja805122j
日期:2008.9.24
The aza-MBH reaction of imines 1 and beta-naphthyl acrylate 2 in the presence of C-6' modified beta-isocupreidine derivative 1c (0.1 equiv) and beta-naphthol 5 (0.1 equiv) afforded the corresponding (3S)-aza-MBH adducts 4 in high yield and excellent enantiomeric excess. These catalytic conditions allowed the aliphatic imines to be employed for the first time as electrophilic partners of the aza-MBH
在C-6'修饰的β-异铜吡啶衍生物1c(0.1当量)和β-萘酚5(0.1当量)存在下,亚胺1和β-萘基丙烯酸酯2的氮杂-MBH反应得到相应的(3S)-氮杂- MBH 以高产率和优异的对映体过量加合物 4。这些催化条件使得脂肪族亚胺首次被用作 aza-MBH 反应的亲电伙伴。发现具有不同酸性强度的两个 H 键供体的共存对于观察到的高对映选择性至关重要。
[EN] COMPOUNDS USEFUL AS REVERSIBLE INHIBITORS OF CATHEPSIN S<br/>[FR] COMPOSES UTILES EN TANT QU'INHIBITEURS REVERSIBLES DE LA CATHEPSINE S
申请人:BOEHRINGER INGELHEIM PHARMA
公开号:WO2000051998A1
公开(公告)日:2000-09-08
Disclosed are novel cathepsin S reversible inhibitory compounds of formulas (I),(Ia) and (II),(IIa) as defined herein. The compou nds are useful for treating autoimmune diseases. Also disclosed are processes for making such novel compounds.
Synthesis and Structure–Activity Relationships of Arylsulfonamides as AIMP2-DX2 Inhibitors for the Development of a Novel Anticancer Therapy
作者:Aneesh Sivaraman、Dae Gyu Kim、Deepak Bhattarai、Minkyoung Kim、Hwa Young Lee、Semi Lim、Jiwon Kong、Ja-il Goo、Seunghwan Shim、Seungbeom Lee、Young-Ger Suh、Yongseok Choi、Sunghoon Kim、Kyeong Lee
DOI:10.1021/acs.jmedchem.9b01961
日期:2020.5.28
AIMP2-DX2, a splicing variant of AIMP2, is up-regulated in lung cancer, possesses oncogenic activity, and results in tumorigenesis. Specifically inhibiting the interaction between AIMP2-DX2 and HSP70 to suppress AIMP2-DX2-dependent cancers with small molecules is considered a promising avenue for cancer therapeutics. Optimization of hit BC-DXI-04 (IC50 = 40.1 mu M) provided new potent sulfonamide based AIMP2-DX2 inhibitors. Among these, BC-DXI-843 showed improved inhibition against AIMP2-DX2 (IC50 = 0.92 mu M) with more than 100-fold selectivity over AIMP2 in a luciferase assay. Several binding assays indicated that this compound effectively induces cancer cell apoptosis by specifically interrupting the interaction between DX2 and HSP70, which leads to the degradation of DX2 via Siah1-mediated ubiquitination. More importantly, BC-DXI-843 demonstrated in vivo efficacy in a tumor xenograft mouse model (H460 cells) at a dosage of 50 mg/kg, suggesting it as a promising lead for development of novel therapeutics targeting AIMP2-DX2 in lung cancer.
Arylsulfonamido-substituted hydroxamic acids
申请人:Novartis AG
公开号:EP0606046B1
公开(公告)日:1997-10-08
EL-NAGGAR, A. M.;GAFFAR, M. M., PAKISTAN J. SCI. AND IND. RES., 1982, 25, N 5, 157-161