The Introduction of Hydrazone, Hydrazide, or Azepane Moieties to the Triterpenoid Core Enhances an Activity Against M. tuberculosis
作者:Oxana B. Kazakova、Natalya I. Medvedeva、Irina E. Smirnova、Tatyana V. Lopatina、Alexander V. Veselovsky
DOI:10.2174/1573406416666200115161700
日期:2020.12.30
conjugation of lupanes with INH at C3 is more effective than at C28 and lupane skeleton is preferable among oleanane and ursane types. The replacement of native hexacarbocyclic A ring to seven-member azepane ring is favorably for inhibition of both MTB H37RV and SDR-strains. These data could possibly mean that the antitubercular activity against INH-resistant strains (INH-R) came from both triterpenoid and isoniazid
Logemann et al., Chemische Berichte, 1957, vol. 90, p. 601,604
作者:Logemann et al.
DOI:——
日期:——
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作者:D. V. Ignatov、Yu. I. Prokof'ev、O. M. Ipatova、V. P. Timofeev、N. V. Medvedeva、A. Yu. Misharin
DOI:10.1023/a:1024961503987
日期:——
Treatment of 18beta-glycyrrhizic acid with a methanolic solution of HCl resulted in 1:1 mixture of methyl esters of 18alpha- and 18beta-glycyrrhetinic acids. Benzoylation of the mixture led to methyl esters of 3-benzoyl-18alpha-glycyrrhetinic acid and 3-benzoyl-18beta-glycyrrhetinic acid, which were separated by chromatography on silica gel. 18alpha-Glycyrrhetinic acid was prepared by alkaline hydrolysis of methyl 3-benzoyl-18alpha-glycyrrhetinate and was further used for the syntheses of 3-keto-18alpha-glycyrrhetinic acid and methyl esters of 18alpha-glycyrrhetinic acid and 3-keto-18alpha-glycyrrhetinic acid.
Haptens, hapten conjugates, compositions thereof and method for their preparation and use
申请人:Kosmeder Jerome W.
公开号:US20080268462A1
公开(公告)日:2008-10-30
A method for performing a multiplexed diagnostic assay, such as for two or more different targets in a sample, is described. One embodiment comprised contacting the sample with two or more specific binding moieties that bind specifically to two or more different targets. The two or more specific binding moieties are conjugated to different haptens, and at least one of the haptens is an oxazole, a pyrazole, a thiazole, a nitroaryl compound other than dinitrophenyl, a benzofurazan, a triterpene, a urea, a thiourea, a rotenoid, a coumarin, a cyclolignan, a heterobiaryl, an azo aryl, or a benzodiazepine. The sample is contacted with two or more different anti-hapten antibodies that can be detected separately. The two or more different anti-hapten antibodies may be conjugated to different detectable labels.