Adamantanamine derivatives. Antimicrobial activities of certain Mannich bases.

A series of Mannich condensation products containing the beta-(1-adamantylamino)propiophenone skeleton (type I) and the o-(1-adamantylaminomethyl)phenol skeleton (type II) was synthesized and tested for antimicrobial activity against certain bacteria and fungi by the agar diffusion and tube dilution methods. Type I compounds were more active than type II compounds and had a broad-spectrum effect on certain gram-negative and gram-positive bacteria, acid-fast bacteria, a yeast, and a mold.