Antitubercular potential of some semisynthetic analogues of phytol
摘要:
Phytol, a diterpene alcohol was modified to several semisynthetic analogues. Some of the modi. cations were done logically to enhance lipophilicity of the molecule. Analogues 14, 16 and 18 exhibited antitubercular activity (MIC 15.6-50 mu g/mL) better than phytol (100 mu g/mL). The most potent analogue 18 was evaluated for in vivo toxicity in Swiss albino mice and was well tolerated by the experimental animals up to 300 mg/kg body weight as a single oral acute dose. (C) 2009 Elsevier Ltd. All rights reserved.
Indium triflate catalysed tandem allylation–intramolecular hydroalkoxylation was efficiently carried out by using 1 mol-% of the catalyst under mild conditions to afford the dihydrobenzopyran ring system (chroman-type structure) in good yields. Kinetic, mechanistic and theoretical studies are also presented.
Antitubercular potential of some semisynthetic analogues of phytol
作者:Dharmendra Saikia、Swati Parihar、D. Chanda、S. Ojha、J.K. Kumar、C.S. Chanotiya、K. Shanker、Arvind S. Negi
DOI:10.1016/j.bmcl.2009.11.107
日期:2010.1
Phytol, a diterpene alcohol was modified to several semisynthetic analogues. Some of the modi. cations were done logically to enhance lipophilicity of the molecule. Analogues 14, 16 and 18 exhibited antitubercular activity (MIC 15.6-50 mu g/mL) better than phytol (100 mu g/mL). The most potent analogue 18 was evaluated for in vivo toxicity in Swiss albino mice and was well tolerated by the experimental animals up to 300 mg/kg body weight as a single oral acute dose. (C) 2009 Elsevier Ltd. All rights reserved.