1-Acetyl-4′-ethyl-2a′-phenyl-2′,2a′,5′,5a′-tetrahydrospiro[1H-indole-3,2′-oxeto[5,4-b]oxazol]-2(3H)-one and 1-acetyl-4′,5a′-diphenyl-2′,2a′,5′,5a′-tetrahydrospiro[1H-indole-3,2′-oxeto[5,4-b]oxazol]-2(3H)-one
摘要:
In the title compounds, C21H18N2O4 and C25H18N2O4, respectively, the five-membered ring of the indole system is almost planar. The oxetane and oxazole rings are individually planar. The orientations of the indole, oxetane, oxazole and phenyl moieties are conditioned by the sp(3) nature of the spiro-C atoms. In both compounds, the relative orientation of the indole and oxazole rings is opposite.
[EN] CYCLOALKYL PYRIMIDINES AS FERROPORTIN INHIBITORS<br/>[FR] PYRIMIDINES CYCLOALKYLIQUES UTILISÉES EN TANT QU'INHIBITEURS DE LA FERROPORTINE
申请人:GLOBAL BLOOD THERAPEUTICS INC
公开号:WO2021222363A1
公开(公告)日:2021-11-04
The subject matter described herein is directed to ferroportin inhibitor compounds of Formula I or I' and pharmaceutical salts thereof, methods of preparing the compounds, pharmaceutical compositions comprising the compounds, and methods of administering the compounds for prophylaxis and/or treatment of diseases caused by a lack of hepcidin or iron metabolism disorders, particularly iron overload states, such as thalassemia, sickle cell disease and hemochromatosis, and also kidney injuries.
The metal-free [2 + 2 + 1] annulation of alkynes, nitriles, and O-atoms for the regioselective assembly of 2,4-disubstituted and 2,4,5-trisubstituted oxazole compounds has been achieved by the use of PhIO with TfOH or Tf2NH. The present reaction could be applied to a facile synthesis of an anti-inflammatory drug.
C4 atom results in steric hindrance for ring closure of the 1,4-diradicals in the [2 + 2] cycloaddition pathway, therefore favoring the [4 + 4] and [4 + 2] cycloaddition pathways. Regio- and diastereoselectivity in the [2 + 2] and [4 + 4] cycloadditions have been discussed based on the thermodynamic stability of the relevant triplet diradical intermediates and the conformations of these diradicals suitable
Iodine(III)-Catalyzed Formal [2 + 2 + 1] Cycloaddition Reaction for Metal-Free Construction of Oxazoles
作者:Takuma Yagyu、Yusuke Takemoto、Akira Yoshimura、Viktor V. Zhdankin、Akio Saito
DOI:10.1021/acs.orglett.7b00742
日期:2017.5.19
The iodine(III) catalyst, in situ generated from iodoarene as a precatalyst with m-CPBA and Tf2NH, promoted the metal-free [2 + 2 + 1] cycloaddition-type reactions of alkynes, nitriles, and oxygen atoms for the regioselective formations of 2,4-disubstituted and 2,4,5-trisubstituted oxazole. A first example of iodine catalysis for multicomponent reactions is represented.
The present invention discloses compounds of Formulae (I) and (II), or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The present invention relates to novel antiviral compounds represented herein above, pharmaceutical compositions comprising such compounds, and methods for the treatment or prophylaxis of viral (particularly HCV) infection in a subject in need of such therapy with said compounds.