169263-66-5Relevant academic research and scientific papers
Synthesis of poly(ethylene glycol) with sulfadiazine and chlorambucil end groups and investigation of its antitumor activity
Jia, Zhongfan,Zhang, Haitao,Huang, Junlian
, p. 2531 - 2534 (2007/10/03)
α-Amino-ω-hydroxyl-poly(ethylene glycol) (PEG) with different molecular weight (Mr=2100, 4400, 7200) were synthesized and used as carrier for the combination of sulfadiazine and chlorambucil. In vivo, all these polymer drugs with sulfadiazine and chlorambucil at each end are water soluble and showed the higher antitumor activity against Lewis lung cancer than the same polymers but without the sulfadiazine. The best one is the sample with molecular weight of 2100. In vitro, however, for the samples with same molecular weights, the polymer drugs with and without sulfadiazine showed the similar results against C6 human breast cancer cells. No obvious difference was found.
Hydrolysis of Schiff bases promoted by UV light
Huang, Zhaohua,Wan, Decheng,Huang, Junlian
, p. 708 - 709 (2007/10/03)
The first hydrolysis of Schiff base under 365 nm UV light is reported. The reaction was affected markedly by the solvent used. It has been successfully applied to the synthesis of compound 2c which is a useful antitumor agent.
A novel kind of antitumour drugs using sulfonamide as parent compound
Huang, Zhaohua,Lin, Zhaoliang,Huang, Junlian
, p. 863 - 872 (2007/10/03)
To obtain potent antitumour agents with low toxicity, sulfonamide derivatives containing 5-flurouracil and nitrogen mustard, respectively are designed and synthesised. 1-(3-(4-Acetylaminobenzenesulfonamido)-3-oxopropyl)-5-fluoropyrimidine-2, 4-dione (4) was obtained by the coupling of p-acetamidobenzenesulfonamide with 3-(5-fluorouracil-1-yl) propionic acid. The hydrolysis of 4 led to 1-(3-(4-aminobenzenesulfonamido)-3-oxopropyl)-5-fluoropyrimidine-2,4-dione (5). Treatment of p-acetamidobenzenesulfonyl chloride with bis(2-chloroethyl) amine led to 4-acetylamino-N,N-bis(2-chloroethyl)benzenesulfonamide (6). Subsequent hydrolysis of 6 in hydrochloric acid led to 4-amino-N,N-bis(2-chloroethyl)benzenesulfonamide hydrochloride (7). Two different synthetic route were investigated in the synthesis of 2-[N1-2-pyrimidyl-aminobenzenesulfonamido] ethyl 4-bis(2-chloroethyl) aminophenyl butyrate (12b). Carbobenzyloxy was proved to be unsuitable for the protection of the aromatic amino group of sulfadiazine since the pyrimidine ring was also hydrogenated at the last step of the first route under the deprotection condition. In another route, acetyl was firstly used as the protective group, then it was replaced by the Schiff's base. The reaction of chlorambucil with 2-[N1-2-pyrimidinyl-(p-acetyl)aminobenzenesulfonamido] ethanol (10b) afforded 2-[N1-2-pyrimidinyl-(p-benzylidene)aminobenzenesulfonamido] ethyl 4-bis(2-chloroethyl) aminophenyl butyrate (11b). Compound 12b was obtained by the hydrolysis of 11b. The acute toxicity and antitumour activity of 5, 7 and 12b have been investigated in mice. Compound 12b exhibited high antitumour activity and low toxicity with a therapeutic index (TI) of 47.55.
2-[N1-2-Pyrimidyl-aminobenzenesulfonamido] ethyl 4-bis(2-chloroethyl) aminophenyl butyrate: A potent antitumor agent
Huang, Zhaohua,Yang, Genjin,Lin, Zhaoliang,Huang, Junlian
, p. 1099 - 1103 (2007/10/03)
2-[N1-2-Pyrimidyl-aminobenzenesulfonamido] ethyl 4-bis(2-chloroethyl) aminophenyl butyrate has been prepared by reaction of chlorambucil with sulfadiazine derivative. Schiff's base has been used as the protective group of the aromatic amine in the synthesis. It can be completely removed by the irradiation of 365 nm UV light at room temperature. The title compound exhibits a high antitumor activity with a therapeutic index (TI) of 47.55 which is twice that of chlorambucil's (TI: 22.84).
