NOVEL THIOUREA OR UREA DERIVATIVE, PREPARATION METHOD THEREOF, AND PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING AIDS, CONTAINING SAME AS ACTIVE INGREDIENT
申请人:You Ji Chang
公开号:US20130096138A1
公开(公告)日:2013-04-18
Disclosed are novel thiourea or urea derivatives inhibitory of HIV activity. Also provided are a method for preparing the thiourea or urea derivatives, and a pharmaceutical composition for the prophylaxis or therapy of AIDS comprising the derivatives. Having high inhibitory activity against HIV, the thiourea or urea derivatives can be effectively used in the prophylaxis or therapy of AIDS.
Thiourea derivatives (46 aroylthioureas) having different substituents close to the sulfur atom were synthesized and their ionophore potential in ion selective electrodes (ISEs) was examined. Structural considerations were taken into account based on the corresponding heavy-metal ISE parameters. As ionophores, some 1-furoyl-3-substituted thioureas (series 2) gave the best results in Pb(II), Hg(II) and Cd(II) ISEs. The strong intramolecular hydrogen bond in series 2 allows ligand interaction only through the CS group. Substituents on the furan and phenyl rings give rise to low solubility in the membrane plasticizer. 3-Alkyl substituted furoylthioureas improve solubility but enhance oxidative processes with chain length. New X-ray diffraction (XRD) structures and theoretical DFT calculations were considered in the analysis of the substituent influence on the selectivity of ISEs. These new ionophores have advantages because of their stability, simple synthesis and easy modification of the sulfur binding ability resulting from substitution.
Formal [3+2] Annulation Involving Allylic Bromides and Thioureas. Synthesis of 2-Iminothiazolidines through a Base-Catalyzed Intramolecular<i>anti</i>-Michael Addition
作者:Misael Ferreira、Marcus M. Sá
DOI:10.1002/adsc.201401026
日期:2015.3.9
A simple and efficient protocol was developed for the synthesis of 2‐iminothiazolidines through a base‐mediated [3+2] annulation involving substituted thioureas and allylic bromides bearing electron‐withdrawing groups. This domino process consists of nucleophilic displacement, followed by intramolecular anti‐Michael addition of the preformed allylic isothiourea under mild conditions to give the thiazolidine
An Efficient Synthesis of Thiazolidine-4-ones with Antitumor and Antioxidant Activities
作者:Ashraf A. Aly、Alan B. Brown、Mohamed Abdel-Aziz、Gamal El-Din A. A. Abuo-Rahma、Mohamed F. Radwan、Mohamed Ramadan、Amira M. Gamal-Eldeen
DOI:10.1002/jhe.641
日期:2012.7
triphenylphosphine at −5°C led to (Z)‐methyl 2‐[(Z)‐2‐(4‐aroylimino)‐4‐oxo‐3‐aryl‐1,3‐thiazolidin‐5‐ylidene]acetates in good yields. The mechanism is discussed. X‐ray structure analysis of one thiazolidine derivative is described. Antitumor and antioxidant activities have been investigated. One derivative of 1,3‐thiazolidine showed moderate antiproliferative in vitro activity against hepatocellular carcinoma Hep‐G2
Synthesis, crystal structure of some new 2-(4-methylbenzoylimino)-3-aryl-4-methyl-1,3-thiazolines
作者:Aamer Saeed、Masood Parvez
DOI:10.1002/jhet.5570430431
日期:2006.7
efficient, straightforward synthesis of somenew2-(4-methylbenzoylimino)-3-aryl-4-methyl-1,3-thiazolines (2a-i) is described. The methodology involves the cyclization of 1-(4-methylbenzoyl)-3-arylthioureas with acetone in the presence of bromine and triethylamine. The structures were confirmed by spectroscopic data, elemental analyses and in one case (2i) by the single crystal X-ray diffraction data.