The present invention relates to the use of novel pyrrolopyrazinyl urea derivatives of Formula I,
wherein the variables R
1
, R
2
, R
3
, R
4
, and R
5
are defined as described herein, which inhibit JAK and are useful for the treatment of auto-immune and inflammatory diseases.
Intramolecular reductive coupling of cycloalkanones tethered to alkynoates in the presence of (η2-propene)titanium was successfully performed to provide hydroxy-esters in a diastereoselective manner. Subsequent lactonization afforded angularly fused unsaturated tricyclic lactones which represent relevant substructures of numerous bioactive compounds.
[EN] INDOLE CARBOXAMIDE DERIVATIVES AND USES THEREOF<br/>[FR] DÉRIVÉS D'INDOLE CARBOXAMIDE ET LEURS UTILISATIONS
申请人:NOVARTIS AG
公开号:WO2014037900A1
公开(公告)日:2014-03-13
A compound of Formula (I) is provided that has been shown to be useful for treating a disease, disorder or syndrome that is mediated by the transportation of essential molecules in the mmpL3 pathway: (I) wherein R1, R2, R3, R4, R5 and R6 are as defined herein.
Asymmetric synthesis of cis-2-substituted cyclohexanamines with high optical purity
作者:A.W. Frahm、G. Knupp
DOI:10.1016/s0040-4039(01)92956-9
日期:1981.1
Asymmetric reductive amination of racemic 2-substituted cyclohexanones (R= methyl, ethyl, phenyl, benzyl) using optically active 1-phenyl-ethylamines yields optically active cis-cyclohexanamines.
Asymmetric Strecker Synthesis of the Four α-Quaternary 1-Amino-2-methylcyclohexanecarboxylic Acids
作者:Franz-Josef Volk、August Wilhelm Frahm
DOI:10.1002/jlac.199619961126
日期:1996.11
The synthesis of the four1-amino-2-methylcyclohexanecarboxylicacids 13, 14, 15, and 16 from diastereomeric mixtures of the α-amino nitriles 1–4 by successive application of conc. H2SO4, Pd/C H2, and conc. HCl is described. The amino nitriles 1–4 were prepared by asymmetricStreckersynthesis under various reactions, The formation of 1–4 is thermodynamically controlled in protic solvents (e.g. MeOH)
通过连续应用浓硫酸,由α-氨基腈1-4的非对映异构体混合物合成四种1-氨基-2-甲基环己烷羧酸13、14、15和16。H 2 SO 4,Pd / CH 2和浓。描述了HCl。所述氨基腈1-4分别通过不对称Strecker合成下各种反应制备的形成1-4在质子溶剂是热力学控制的(例如甲醇),而反应是在非质子溶剂动力学控制(例如己烷)下, α–氨基酰胺5–8的分离,这是通过1–4的部分水解获得的通过CC,LPLC和HPLC实现。所有合成化合物的绝对构型仅通过两次具有连续相关性的X射线分析确定。讨论了不对称Strecker合成的空间控制。