[EN] AMIDS SUBSTITUTED INDAZOLE DERIVATIVEES AS PLOY (ADP-RIBOSE) POLYMERASE INHIBITORS<br/>[FR] DÉRIVÉS D'INDAZOLE À SUBSTITUTION AMIDE EN TANT QU'INHIBITEURS DE POLY (ADP-RIBOSE) POLYMÉRASE
申请人:BETTA PHARMACEUTICALS CO LTD
公开号:WO2015051766A1
公开(公告)日:2015-04-16
The present invention relates to amide substituted indazoles and benzotriazoles which are inhibitors of the enzyme poly (ADP-ribose) polymerase (PARP), previously known as poly (ADP-ribose) synthase and poly (ADP-ribosyl) transferase. The compounds of the present invention are useful as mono-therapies in tumors with specific defects in DNA-repair pathways, as enhancers of certain DNA-damaging agents such as anticancer agents and radiotherapy, for reducing cell necrosis (in stroke and myocardial infarction), regulating inflammation and tissue injury, treating retroviral infections, and protecting against the toxicity of chemotherapy.
Lead(ii) tetrafluoroborate and hexafluorophosphate complexes with crown ethers, mixed O/S- and O/Se-donor macrocycles and unusual [BF4]− and [PF6]− coordination
κ2-coordinated PF6− groups disposed cis, with a very folded macrocycle conformation. In [Pb(18-crown-6)(NO3)(PF6)] a chelating nitrate group occupies the coordination sites at Pb(II) instead of the two water molecules, and the weakly coordinating PF6− group is tridentate. The crystal structures of the lead nitrate complexes, [Pb(15-crown-5)(NO3)2] and [Pb([18]aneO4Se2)(NO3)2], containing nine- and 10-coordinate
Sulfimidation of thioether groups—a versatile method for modifying and linking thia/oxa crowns
作者:Mark R. J. Elsegood、Paul F. Kelly、Gillian Reid、Alexandra M. Z. Slawin、Paul M. Staniland
DOI:10.1039/b802903b
日期:——
Reaction of the mixed thioether/ether crowns [9]aneO2S 1, [12]aneO3S 2 and [18]aneO4S23 with one mol. equivalent of the aminating agent MSH (o-mesitylsulfonylhydroxylamine) in Et2O results in the formation of the mono-sulfimidated systems [9]aneO2(SNH2)}+1a, [12]aneO3(SNH2)}+2a and [18]aneO4S(SNH2)}+3a, while using two mol. equivalents of MSH with 3 gives the disulfimidium cation [18]aneO4(SNH2)2}2+3b. All of these species have been isolated in good yields as the [mesSO3]â (mes = 2,4,6-Me3C6H2) salts and can be readily converted to the [BPh4]â salts by metathesis with Na[BPh4]. Treatment of 1a or 2a with lithium diisopropylamide (LDA) and N-bromosuccinimide (NBS) at â78 °C, followed by addition of a further equivalent of the parent thia/oxa crown, gives monocationic N-bridged sulfimide bicyclic compounds (4 and 5 respectively), in which the crowns are linked by the sulfimidic nitrogen. Reaction of 3a with LDA and NBS leads to formation of the ([18]aneO4S2)N}+ cation 6 which exhibits an intramolecular SâNâS bridge. Crystallographic studies on representative examples of each compound type are described, together with their spectroscopic properties.