Novel spirosuccinimides with incorporated isoindolone and benzisothiazole 1,1-dioxide moieties as aldose reductase inhibitors and antihyperglycemic agents
摘要:
Compounds from two novel series of spirosuccinimides were prepared. Analogs of series 2 possessed a spiro-fused isoindolone moiety while those of series 3 contained a spiro-fused benzisothiazole S,S-dioxide group. These compounds were evaluated as aldose reductase inhibitors (ARI) in vitro by their ability to inhibit glyceraldehyde reduction using a partially purified bovine lens aldose reductase preparation and in vivo as inhibitors of galactitol accumulation in the lens, sciatic nerve, and diaphragm of galactose-fed rats. Many members from the isoindolone series 2, particularly those containing an isoindolone N-methyl moiety, showed good in vitro and in vivo potency. The most potent member, the 6-chloro analog 32, was resolved, and aldose reductase activity was found to reside almost exclusively in the (+)-enantiomer. Compound 32 was approximately equipotent in the sciatic nerve of the galactose-fed rat to other cyclic imide ARI's of similar in vitro activity, namely sorbinil and ADN-138 and also to tolrestat, an acetic acid-based ARI (ED50's 4-8 mg/kg). Compounds from both series, 2 and 3, were also found to lower plasma glucose levels of genetically obese db/db and ob/ob mice with potency similar to that of ciglitazone. However, members from these series failed to lower insulin levels of the ob/ob mouse at the doses tested.
N -Substituted and ring opened saccharin derivatives selectively inhibit transmembrane, tumor-associated carbonic anhydrases IX and XII
作者:Jekaterīna Ivanova、Fabrizio Carta、Daniela Vullo、Janis Leitans、Andris Kazaks、Kaspars Tars、Raivis Žalubovskis、Claudiu T. Supuran
DOI:10.1016/j.bmc.2017.04.007
日期:2017.7
well as some ring opened derivatives were prepared and investigated as inhibitors of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). The widespread cytosolic isoforms CA I and II were not inhibited by these sulfonamides whereas transmembrane, tumor-associated ones were effectively inhibited, with KIs in the range of 22.1-481nM for CA IX and of 3.9-245nM for hCA XII. Although the inhibition mechanism
Regioselective Alkylation of Saccharin with Alcohols under Mitsunobu Conditions
作者:Xiaolong Wang、Yanying Ma、Tingting Ju
DOI:10.3184/174751913x13716447161975
日期:2013.7
The regioselective Mitsunobu alkylation of saccharin with various alcohols has been examined. The N/O-alkylation is dependent on the steric hindrance of the alcohols, that is, less sterically hindered alcohol preferentially afford N-alkylated saccharin and vice versa.
Compositions useful as inhibitors of voltage-gated sodium channels
申请人:Gonzalez E. Jesus
公开号:US20060025415A1
公开(公告)日:2006-02-02
The present invention relates to compounds useful as inhibitors of voltage-gated sodium channels. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.
SMALL MOLECULE PI 3-KINASE INHIBITORS AND METHODS OF THEIR USE
申请人:Nuss John N.
公开号:US20090060912A1
公开(公告)日:2009-03-05
Compounds having formula I are provided where the variables have the values described herein.
Pharmaceutical formulations include the compounds or pharmaceutically acceptable salts thereof and a pharmaceutically acceptable carrier and combinations with other agents. A method of treating a patient comprises administering a pharmaceutical formulation according to the invention to a patient in need thereof.
Compositions Useful as Inhibitors of Voltage-Gated Sodium Channels
申请人:Gonzalez, III Jesus E.
公开号:US20100087479A1
公开(公告)日:2010-04-08
The present invention relates to compounds useful as inhibitors of voltage-gated sodium channels. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.