| abstract |
The present invention is represented by the formula (I): ## STR1 ## wherein Ar 1 and Ar 2 are the same or different and are substituted or unsubstituted aromatic groups, and X is —CH 2 O— or —CH═CH—. And a combination preparation for simultaneous, separate, or sequential administration in the treatment or prevention of HIV-1 infection, comprising a compound represented by formula (II), a salt thereof or a solvate thereof; A combination comprising two separate formulations: (a) a formulation comprising a compound of formula (I), a salt thereof or a solvate thereof; and (b) a formulation comprising an anti-HIV-1 drug. Relates to the formulation. |