OBJECTIVE The root of Cynanchum otophyllum-also known as Qing Yang Sheng-is a traditional ethnical Chinese medicine. The objective of this study was to evaluate in vitro activities and safety of C. otophyllum glucan sulfate (PS20) against Human Immunodeficiency Virus (HIV) and Herpes Simplex Virus (HSV). MATERIALS AND METHODS Anti-HIV activity was… (More)
The title compound, C28H40N2, was obtained from the condensation reaction of 4-tert-butyl-2,6-di-methyl-aniline and butane-2,3-dione. The mol-ecule lies on an inversion centre. The C=N bond has an E conformation. The plane of the benzene ring is almost perpendicular to the 1,4-di-aza-butadiene mean plane [dihedral angle = 89.8 (9)°].
In the title compound, C32H32N2, synthesized by the con-densation reaction of 2-ethyl-4-phenyl-aniline and 2,3-butane-dione, the conformation about the C=N bonds is E and the substituted biphenyl units are trans to one another. In the two biphenyl ring systems, the planes of the two rings are inclined to one another by 25.25 (19) and 28.01 (19)°. The planes… (More)