POLYBASIC BACTERIAL EFFLUX PUMP INHIBITORS AND THERAPEUTIC USES THEREOF
申请人:Glinka Tomasz
公开号:US20100152098A1
公开(公告)日:2010-06-17
Disclosed are compounds having polybasic functionalities. The compounds inhibit bacterial efflux pump inhibitors and are used in combination with an anti-bacterial agent to treat or prevent bacterial infections. These combinations can be effective against bacterial infections that have developed resistance to anti-bacterial agents through an efflux pump mechanism.
Pyran dervatives as CYP11A1 (cytochrome P450 monooxygenase 11A1) inhibitors
申请人:Orion Corporation
公开号:US10717726B2
公开(公告)日:2020-07-21
Compounds of formula (I)
wherein R1, R2, R3, R4, R5, R23, R24, L, A and B are as defined in claim 1, or pharmaceutically acceptable salts thereof are disclosed. The compounds of formula (I) possess utility as cytochrome P450 monooxygenase 11A1 (CYP11A1) inhibitors. The compounds are useful as medicaments in the treatment of steroid receptor, particularly androgen receptor, dependent diseases and conditions, such as prostate cancer.
Synthesis of Bi-Heterocyclic Sulfonamides as Tyrosinase Inhibitors: Lineweaver–Burk Plot Evaluation and Computational Ascriptions
作者:Muhammad Athar Abbasi、Zia-ur Rehman、Aziz-ur Rehman、Sabahat Zahra Siddiqui、Majid Nazir、Mubashir Hassan、Hussain Raza、Syed Adnan Ali Shah、Sung-Yum Seo
DOI:10.17344/acsi.2019.5283
日期:——
The designed bi-heterocyclic sulfonamides were synthesized through a two-step protocol and their structures were ascertained by spectral techniques including IR, H-1 NMR and C-13 NMR along with CHN analysis. The in vitro inhibitory effects of these sulfonamides were evaluated against tyrosinase and kinetics mechanism was analyzed by LineweaverBurk plots. The binding modes of these molecules were ascribed through molecular docking studies. These synthesized bi-heterocyclic molecules were identified as potent inhibitors relative to the standard (kojic acid) and compound 5 inhibited the tyrosinase non-competitively by forming an enzyme-inhibitor complex. The inhibition constant Ki (0.09 mu M) for compound 5 was calculated from Dixon plots. Computational results also displayed that all compounds possessed good binding profile against tyrosinase and interacted with core residues of target protein.
Chemical synthesis at solid interfaces. On the use of conducting polythiophenes equipped of adequate linkers allowing a facile and highly selective cathodic SN bond scission with a fully regenerating resin process
作者:J.F. Pilard、G. Marchand、J. Simonet
DOI:10.1016/s0040-4020(98)00580-8
日期:1998.8
Electrogenerated polythiophenes were evaluated as;Merrifield-like resins for the anchoring of amine functions together with deprotection processes. Suitable linkers were terminated with a fully regenerable aromatic sulfonamide moiety. The S-N bond was cleaved to liberate the amine with high selectivity under very mild conditions by cathodic means with amine liberation. Moreover a facile recycling process of the resin allows the further grafting of various amine functions. (C) 1998 Elsevier Science Ltd. All rights reserved.