作为药物发现计划的一部分,4-pyrrazin-2-yl-1 H -pyrrole-2-carboxamides 与许多双环类似物一起被使用。科学文献中基本上没有找到这些化合物的途径。4-(pyrazin-2-yl)-1 H -pyrrole-2-carboxamide 和几种稠合双环类似物的合成均使用标准程序(S N Ar、硼化、C-C 交叉偶联、水解、酰胺键形成、环化,卤化和烷基化)从容易获得的起始材料报道。每个最终化合物的合成序列范围为 4-12 步,分离中间体的产率范围为 20% 至 ∼100%。
Metal-Free Catalytic Reductive Cleavage of Enol Ethers
作者:Karina Chulsky、Roman Dobrovetsky
DOI:10.1021/acs.orglett.8b02932
日期:2018.11.2
In contrast to the well-known reductivecleavage of the alkyl–O bond, the cleavage of the alkenyl–O bond is much more challenging especially using metal-free approaches. Unexpectedly, alkenyl–O bonds were reductively cleaved when enol ethers were reacted with Et3SiH and a catalytic amount of B(C6F5)3. Supposedly, this reaction is the result of a B(C6F5)3-catalyzed tandem hydrosilylation reaction and
与众所周知的烷基-O键的还原裂解相反,烯基-O键的裂解更具挑战性,尤其是使用无金属方法时。出乎意料的是,当烯醇醚与Et 3 SiH和催化量的B(C 6 F 5)3反应时,烯基-O键被还原性裂解。据推测,该反应是B(C 6 F 5)3催化的串联氢化硅烷化反应和硅辅助的β-消除的结果。基于实验和密度泛函理论(DFT)计算,提出了这种裂解反应的机理。
Calas et al., Bulletin de la Societe Chimique de France, 1955, p. 790
作者:Calas et al.
DOI:——
日期:——
[EN] SMO MODULATOR COMPOUNDS<br/>[FR] COMPOSÉS MODULATEURS DE SMO
申请人:[en]OMASS THERAPEUTICS LIMITED
公开号:WO2023148481A1
公开(公告)日:2023-08-10
The disclosures herein relate to novel compounds of Formula (1a) or a salt thereof, wherein X1, X2, X3, X4, Y1, Y2, Y3, Y4, Z1, Z2, Z3, Z4, W, R1, R4, R5, R6and R7are defined herein, and their use in treating, preventing, ameliorating, controlling or reducing the risk of disorders associated with SMO receptors.
Komarov,N.V.; Igonina,I.I., Journal of general chemistry of the USSR, 1967, vol. 37, p. 1998 - 2001
作者:Komarov,N.V.、Igonina,I.I.
DOI:——
日期:——
Synthesis of Novel Pyrazine-Substituted 1H-Pyrrole-2-carboxamides and Related Tethered Heterocycles
作者:Rachel L. Howells、Scott G. Lamont、Thomas M. McGuire、Samantha Hughes、Rachel Borrows、Gary Fairley、Lyman J. L. Feron、Ryan D. R. Greenwood、Eva Lenz、Emma Grant、Iain Simpson
DOI:10.1055/s-0040-1719873
日期:2022.5
discovery program, 4-pyrazin-2-yl-1H-pyrrole-2-carboxamides were accessed along with a number of bicyclic analogues. Routes to these compounds were largely absent from the scientific literature. The synthesis of a 4-(pyrazin-2-yl)-1H-pyrrole-2-carboxamide and several fused bicyclic analogues all using standard procedures (SNAr, borylation, C–C cross couplings, hydrolysis, amide bond formation, cyclisation
作为药物发现计划的一部分,4-pyrrazin-2-yl-1 H -pyrrole-2-carboxamides 与许多双环类似物一起被使用。科学文献中基本上没有找到这些化合物的途径。4-(pyrazin-2-yl)-1 H -pyrrole-2-carboxamide 和几种稠合双环类似物的合成均使用标准程序(S N Ar、硼化、C-C 交叉偶联、水解、酰胺键形成、环化,卤化和烷基化)从容易获得的起始材料报道。每个最终化合物的合成序列范围为 4-12 步,分离中间体的产率范围为 20% 至 ∼100%。