Disclosed are a tricyclic compound as represented by general formula (I), a pharmaceutical composition containing same, and a preparation method therefor and the medical use thereof. The compound can be used for preventing and treating a variety of diseases caused by toxic aldehydes.

##STR00001##

This invention relates to the quick and efficient synthesis of anti-tumor or anti-cancer compounds. More particularly, it relates to the quick and efficient synthesis of anti-tumor or anti-cancer compounds comprising phenylacetophenone derivatives using oxabenzonorbornadienes with terminal alkynes.

This invention relates to the quick and efficient synthesis of anti-tumor or anti-cancer compounds. More particularly, it relates to the quick and efficient synthesis of anti-tumor or anti-cancer compounds comprising phenylacetophenone derivatives using oxabenzonorbornadienes with terminal alkynes.

The present invention relates to compounds and their use in the treatment of cystic fibrosis, methods for their production, pharmaceutical compositions comprising the same, and methods of treating cystic fibrosis by administering a compound of the invention.

The present invention relates to compounds and their use in the treatment of cystic fibrosis, methods for their production, pharmaceutical compositions comprising the same, and methods of treating cystic fibrosis by administering a compound of the invention.

The present invention relates to compounds and their use in the treatment of cystic fibrosis, methods for their production, pharmaceutical compositions comprising the same, and methods of treating cystic fibrosis by administering a compound of the invention.

The present invention relates to compounds and their use in the treatment of cystic fibrosis, methods for their production, pharmaceutical compositions comprising the same, and methods of treating cystic fibrosis by administering a compound of the invention.

Provided herein are a reversibly reducible material and a method of forming a reversibly reducible material. The reversibly reducible material includes the molecular formula:

##STR00001##

wherein each of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from the group consisting of hydrogen, oxygen, alkyl, cycloalkyl, O-alkyl, amine, quaternary ammonium, and sulfonate; R.sup.5 is selected from the group consisting of hydrogen, halogen, alkyl, alkoxy, and amine; X is selected from the group consisting of hydrogen, branched or un-branched alkyl chain having 1-8 atoms containing 0-3 oxygen or nitrogen atoms, and substituted or unsubstituted aryl; and Z is selected from the group consisting of branched or un-branched alkyl chain having 1-8 atoms containing 0-3 oxygen or nitrogen atoms, and substituted or unsubstituted aryl. The method of forming a reversibly reducible material comprising reacting a quinone with an amine in an ethereal solvent. Also provided herein is a negolyte.