作者:Yang Liu、Zhongyi Mao、Alexandre Pradal、Pei-Qiang Huang、Julie Oble、Giovanni Poli
DOI:10.1021/acs.orglett.8b01616
日期:2018.7.6
The synthesis of bi- and tricyclic structures incorporating pyrrolidone rings is disclosed, starting from resonance-stabilized acetamides and cyclic α,β-unsaturated-γ-oxycarbonyl derivatives. This process involves an intermolecular Tsuji–Trost allylation/intramolecular nitrogen 1,4-addition sequence. Crucial for the success of this bis-nucleophile/bis-electrophile [3 + 2] annulation is its well-defined
Catalytic decarboxylative alkylation of β-keto acids with sulfonamides via the cleavage of carbon–nitrogen and carbon–carbon bonds
作者:Cui-Feng Yang、Jian-Yong Wang、Shi-Kai Tian
DOI:10.1039/c1cc12790j
日期:——
An efficient decarboxylative alkylation reaction of β-keto acids with N-benzylic or N-allylic sulfonamides has been developed, for the first time, through sequential cleavage of carbonânitrogen and carbonâcarbon bonds in the presence of 10 mol% of FeCl3.
[EN] FARNESOID X RECEPTOR AGONISTS<br/>[FR] AGONISTES DU RÉCEPTEUR DE FARNÉSOÏDE X
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2009005998A1
公开(公告)日:2009-01-08
The present invention relates to famesoid X receptors (FXR, NR1H4) FXR is a member of the nuclear receptor class of ligand-activate transcription factors More particularly, the present invention relates to compounds useful as agonists for FXR, pharmaceutical formulations comprising such compounds, and therapeutic use of the same Novel isoxazole compounds are disclosed as part of pharmaceutical compositions for the treatment of a condition mediated by decreased FXR activity, such as obesity, diabetes, cholestatic liver disease, liver fibrosis, and metabolic syndrome
Enantioselective decarboxylative Mannich reaction of β-keto acids with <i>C</i>-alkynyl <i>N</i>-Boc <i>N</i>,<i>O</i>-acetals: access to chiral β-keto propargylamines
作者:Cong-Cong Zhang、Li-Jun Chen、Bao-Chun Shen、Hui-Ding Xie、Wei Li、Zhong-Wen Sun
DOI:10.1039/d1ob01555a
日期:——
related synthetic approaches remain limited. Therefore, a concise and efficient method for the enantioselective synthesis of β-keto propargylamines via chiral phosphoric acid-catalyzed asymmetric Mannichreaction between β-keto acids and C-alkynyl N-Boc N,O-acetals as easily available C-alkynyl imine precursors has been demonstrated here, affording a broad scope of β-keto N-Boc-propargylamines in high
手性酮基取代的炔丙基胺是有机和药物合成领域必不可少的一类多功能化合物,受到了广泛关注,但相关的合成方法仍然有限。因此,通过手性磷酸催化 β-酮酸与C-炔基 N - Boc N , O-缩醛作为容易获得的C-炔基亚胺前体的不对称曼尼希反应,一种简洁有效的对映选择性合成 β-酮炔丙基胺的方法这里已经证明,提供广泛的 β-酮N-Boc-炔丙基胺具有高产率(高达 97%),通常具有高对映选择性(高达 97 : 3 er)。
EFTU INHIBITORS OR AMINOTHIAZOLES AND THEIR USES
申请人:LaMarche Matthew J.
公开号:US20080221142A1
公开(公告)日:2008-09-11
The present application describes organic compounds that are useful for the treatment, prevention and/or amelioration of diseases.