| abstract |
At least one triazaspiro [5.5] undecane derivative represented by the general formula (I), a quaternary ammonium salt thereof, an N-oxide thereof or a non-toxic salt thereof as an active ingredient, and optionally at least one other Prophylactic and / or therapeutic agent for HIV infection which may be combined with an agent for preventing and / or treating HIV infection, or an agent for preventing and / or treating AIDS caused by the infection (the symbols in the formula are those described in the specification). Street.). The triazaspiro [5.5] undecane derivatives of the general formula (I), their quaternary ammonium salts, their N-oxides or their non-toxic salts are produced by preventing and / or treating HIV infection or by its infection. It is useful for the prevention and / or treatment of AIDS. |