Sulfonate analogs of C23 and C24 bile acids were synthesized from norcholic, norchenodeoxycholic, norursodeoxycholic, nordeoxycholic, norhyodeoxycholic, cholic, deoxycholic, hyodeoxycholic, and lithocholic acids. The principal reactions used were (1) reduction of the bile acids with NaBH4 to the corresponding bile alcohols, (2) selective tosylation of the terminal hydroxyl group, (3) iodination of the tosyl esters with NaI, and (4) treatment of the iodides with Na2SO3 to form the sulfonate analogs of the bile acids. The sulfonate analogs showed polarity similar to that of taurine-conjugated bile acids on thin-layer chromatography. The carbon 13 nuclear magnetic resonance spectral data for the sulfonate analogs were tabulated.
Sulfonate analogs of C23 and C24 bile acids were synthesized from norcholic, norchenodeoxycholic, norursodeoxycholic, nordeoxycholic, norhyodeoxycholic, cholic, deoxycholic, hyodeoxycholic, and lithocholic acids. The principal reactions used were (1) reduction of the bile acids with NaBH4 to the corresponding bile alcohols, (2) selective tosylation of the terminal hydroxyl group, (3) iodination of the tosyl esters with NaI, and (4) treatment of the iodides with Na2SO3 to form the sulfonate analogs of the bile acids. The sulfonate analogs showed polarity similar to that of taurine-conjugated bile acids on thin-layer chromatography. The carbon 13 nuclear magnetic resonance spectral data for the sulfonate analogs were tabulated.
Cationic Steroid Antimicrobial Compositions and Methods of Use
申请人:Savage B. Paul
公开号:US20070190067A1
公开(公告)日:2007-08-16
The invention provides methods for decreasing or inhibiting human immunodeficiency virus (HIV) infection or pathogenesis (e.g., illness) of a cell in vitro, ex vivo or in vivo, a symptom or pathology associated with human immunodeficiency virus (HIV) infection or pathogenesis (e.g., illness) in vitro, ex vivo or in vivo, or an adverse side effect of human immunodeficiency virus (HIV) infection or pathogenesis (e.g., illness) in vitro, ex vivo or in vivo. In one embodiment, a method of the invention includes treating a subject with an invention compound (e.g., cationic steroid antimicrobial or CSA).
Cationic Steroid Microbial Compositions and Methods of Use
申请人:Savage B. Paul
公开号:US20070191322A1
公开(公告)日:2007-08-16
The invention relates to methods for decreasing or inhibiting influenza virus infection or pathogenesis of a cell in vitro, ex vivo or in vivo, a symptom or pathology associated with influenza infection or pathogenesis in vitro, ex vivo or in vivo, or an adverse side effect of influenza infection or pathogenesis in vitro, ex vivo or in vivo. In one embodiment, a method of the invention includes treating a subject with an invention compound (e.g., cationic steroid antimicrobial or CSA).
[EN] CATIONIC STEROID ANTIMICROBIAL DIAGNOSTIC, DETECTION, SCREENING AND IMAGING METHODS<br/>[FR] PROCÉDÉS DE DIAGNOSTIC, DE DÉTECTION, DE TRI ET D'IMAGERIE DE STÉROÏDES CATIONIQUES ANTIMICROBIENS
申请人:UNIV BRIGHAM YOUNG
公开号:WO2010036427A1
公开(公告)日:2010-04-01
The invention relates to diagnostic, detection, screening and imaging methods. In various embodiments, methods of diagnosis, detection, screening and imaging include administering a cationic steroid antimicrobial or CSA to a subject having or at risk of having an infection or a hyperproliferative disorder (e.g., a tumor, cancer or neoplasia) in an amount effective to diagnose or detect the infection or the hyperproliferative disorder (e.g., a tumor, cancer or neoplasia) in the subject. In a particular aspect, a detectable CSA, namely CSA- 13 labeled with 99mTc is used to detect the presence of an infection.
A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.
Synthesis of cholaphanes by ring closing metathesis
作者:Dorota Czajkowska、Jacek W. Morzycki
DOI:10.1016/j.tetlet.2007.02.099
日期:2007.4
Abstract The synthesis of cholaphanes by ringclosingmetathesis (RCM) of 3α,7α,12α,24-tetraol allyl derivatives, obtained from cholic acid, was attempted. The reactions of tetraol 3,24-diallyl ether or 3,24-diacrylate were not satisfactory. However, diallyl derivatives of disteroidal 3,3′- or 24,24′- ortho -phthalates reacted smoothly affording cyclic dimers in good yields. In all the reactions studied
摘要 尝试以胆酸为原料,对3α,7α,12α,24-四醇烯丙基衍生物进行闭环复分解(RCM)合成胆烷。四醇3,24-二烯丙基醚或3,24-二丙烯酸酯的反应不令人满意。然而,二甾体 3,3'- 或 24,24'- 邻苯二甲酸酯的二烯丙基衍生物反应平稳,以良好的收率提供环状二聚体。在所有研究的反应中,大环的 E 异构体都是过量的。