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.
Enantioselective catalytic remote perfluoroalkylation of α-branched enals driven by light
作者:Matteo Balletti、Tommy Wachsmuth、Antonio Di Sabato、Will C. Hartley、Paolo Melchiorre
DOI:10.1039/d3sc01347b
日期:——
Herein, we report a photochemical organocatalytic method for the asymmetric introduction of perfluoroalkyl fragments (including the valuable trifluoromethyl moiety) at the remote γ-position of α-branchedenals. The chemistry exploits the ability of extended enamines (dienamines) to form photoactive electron donor–acceptor (EDA) complexes with perfluoroalkyl iodides, which under blue light irradiation