| abstract |
The present invention provides the following formula: Embedded image A new adamantane compound having one of the following formulas: wherein R 1 and R 3 are H, OH, alkyl, cycloalkyl, amino or aryl and are the same or different is R 2, H, NH 2, alkyl, OH, COOH, amino, amide or carbamate;; also well R4~R8 is, H, OH, NH2, alkyl, OH, COOH, ester, amino, amido, Or R 9 -R 14 are H, alkyl, or phenyl, and may be the same or different; and When any of R1 to R8 is amino, the compounds are free bases and their acid addition salts. |