INTRODUCTION The antiproliferative effect of eleven neolignans, two lignans and one diterpene isolated from three Lauraceae plants, four benzofurans and two bicyclooctanes synthetic derivatives was evaluated in vitro on a set of five human cancer cells from solid tumors with a high incidence in Colombia. OBJECTIVE To evaluate the cytotoxic effect of twenty compounds on the tumor cell lines He...

In the title compound, C(22)H(17)FOS, the crystal studied was an inversion twin with a 0.42 (18):0.58 (18) domain ratio. The 4-fluoro-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 17.82 (6)°, and the dihedral angle between the 5-phenyl ring and the benzofuran plane is 29.45 (7)°.

In the title compound, C(21)H(15)ClOS, the 4-chloro-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 21.50 (6)°. The dihedral angle between the 5-phenyl ring and the benzofuran plane is 29.39 (6)°. The crystal studied was an inversion twin with a 0.65 (7):0.35 (6) domain ratio.

Treatment of toyocamycin or sangivamycin with 1,3-dibromo-5,5-dimethylhydantoin in MeOH (r.t./30 min) gave 8-bromotoyocamycin and 8-bromosangivamycin in good yields. Nucleophilic aromatic substitution of 8-bromotoyocamycin with sodium azide provided novel 8-azidotoyocamycin. Strain promoted click reactions of the latter with cyclooctynes resulted in the formation of the 1,2,3-triazole products....

Cyclic unsaturated ketone frameworks, which are obtained as the dearomatized products of phenols and their derivatives, valuable to synthesis complex molecules also contribute generation that can be readily employed for further transformations. Herein, use hypervalent iodine compounds access enantioenriched through direct stepwise dearomatization reactions have been elaborated. More information...

In the title compound, C(22)H(18)OS, the 2-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 29.18 (6)°. The dihedral angle between the 5-phenyl ring and the benzofuran plane is 20.42 (5)°. In the crystal structure, mol-ecules are linked by weak inter-molecular C-H⋯π inter-actions.

In this investigation, the synthesis of 2-substituted pyrimidines by the reaction of benzofuranchalcones (3a-d) with urea, thiourea and guanidine hydrochloride was reported. The structuresof title compounds (4a-d), (5a-d) and (6a-d) were established on the basis of analyticaland spectral data. The synthesized compounds were screened for antimicrobial activityand molecular docking studies. Some ...