Ligand-Enabled γ-C(sp<sup>3</sup>)–H Activation of Ketones
作者:Ru-Yi Zhu、Zi-Qi Li、Han Seul Park、Chris H. Senanayake、Jin-Quan Yu
DOI:10.1021/jacs.8b01359
日期:2018.3.14
are identified to enable C(sp3)-H activation for the first time. A rare six-membered palladacycle intermediate is isolated and characterized to elucidate the reaction mechanism. Both (hetero)arylation and vinylation of γ-C(sp3)-H bonds are demonstrated. Sequential β- and γ-C(sp3)-H (hetero)arylation of muscone showcases the utility of this method for late-stagediversification. A convenient Mn(II)-catalyzed
Overcoming the Limitations of γ- and δ-C–H Arylation of Amines through Ligand Development
作者:Yan-Qiao Chen、Zhen Wang、Yongwei Wu、Steven R. Wisniewski、Jennifer X. Qiao、William R. Ewing、Martin D. Eastgate、Jin-Quan Yu
DOI:10.1021/jacs.8b07109
日期:2018.12.26
improves the γ-methylene arylation of alkyl amines, extending the coupling partners to a wide range of medicinally important heteroaryl iodides and even previously unreactive heteroaryl bromides. The combination of an appropriate transientdirectinggroup and pyridone ligand has also enabled the δ-arylation of alkyl amines. Notably, our transientdirectinggroup design reveals the importance of matching
Omipalisib inspired macrocycles as dual PI3K/mTOR inhibitors
作者:Rosa M. Álvarez、Ana Belén García、Concepción Riesco-Fagundo、José I. Martín、Carmen Varela、Antonio Rodríguez Hergueta、Esther González Cantalapiedra、Julen Oyarzabal、Bruno Di Geronimo、Milagros Lorenzo、M Isabel Albarrán、Antonio Cebriá、David Cebrián、Sonia Martínez-González、Carmen Blanco-Aparicio、Joaquín Pastor
DOI:10.1016/j.ejmech.2020.113109
日期:2021.2
exploration of novel small molecule macrocycles (MCXs) as dual PI3K/mTOR inhibitors. Macrocyclization is an attractive approach used in drug discovery, as the semi-rigid character of these structures could provide improved potency, selectivity and favorable pharmacokineticproperties. Importantly, this strategy allows access to new chemical space thus obtaining a better intellectual property position. A
Compounds of formula I: in free or salt or solvate form, where R
1
, R
2
, R
3
and R
20
have the meanings as indicated in the specification, are useful for treating diseases mediated by the ALK-5 and/or ALK-4 receptor. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described. These compounds are useful for the treatment of inflammatory or obstructive airways diseases such as pulmonary hypertension, pulmonary fibrosis, liver fibrosis, cancer, muscle diseases such as muscle atrophies and muscle dystrophies, and systemic skeletal disorders such as osteoporosis.
Compounds of formula I: in free or salt or solvate form, where R1, R2, R3 and R20 have the meanings as indicated in the specification, are useful for treating diseases mediated by the ALK-5 and/or ALK-4 receptor. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described. These compounds are useful for the treatment of inflammatory or obstructive airways diseases such as pulmonary hypertension, pulmonary fibrosis, liver fibrosis, cancer, muscle diseases such as muscle atrophies and muscle dystrophies, and systemic skeletal disorders such as osteoporosis.