Abstract: Methods involving preparation of building blocks of 2,7-dihydroxy-9-fluorenone toward the synthesis of tilorone dihydrochloride salt and other salts (bromide, iodide, fluoride, citrate, oxalate, maleate, phosphate, tartrate, triflate, trifluoroacetate, tetrafluoroborate) of tilorone, and an efficient, safe, cost effective method for the preparation of 2,7-bis-[2-(diethylamino)ethoxy]-fluorenone-9 and its various salts are developed. The methods involve oxygenation of fluorene, nitration of fluorenone, followed by reduction and diazotization toward the formation of 2,7-dihydroxy-9-fluorenone, which is the key intermediate for the formation of 2,7-bis-[2-(diethylamino)ethoxy]-9-fluorenone-dihydrochloride (Tilorone dihydrochloride) and other tilorone salts. The synthesis method has relatively simple operation, mild reaction conditions, high yield, and simple process with yields of 80-97%.

Abstract: Disclosed are 3-indolyl furanoid compounds which are useful as potent anti-inflammatory agents and prevent gastric ulcer by inhibiting matrix metalloproteinase-9 (MMP-9) expression in gastric mucosal layer. For example, disclosed is a compound of formula 1, wherein: R1 to R6 is selected from H, OH, CH3, OCH3, Br, Cl, Ph or o-OHC6H4, OCH2—CH?CH2, or OCH2CH2CH3, and R1 to R6 is having at least one substituent with alkyl, aryl and heteroaryl groups other than H, wherein the carbon in alkyl, aryl and heteroaryl is in the range of C1 to C8. Various embodiments relate to representative compounds of Formula 1 and method of preparation thereof. Further embodiments relates to the use of representative compounds of Formula 1 in treating diseases associated with gastric ulcer and other inflammatory diseases. A noted feature of an embodiment is the IC50 value of 50 ?M of one of the 3-indolyl furanoids.

Abstract: Disclosed are 3-indolyl furanoid compounds which are useful as potent anti-inflammatory agents and prevent gastric ulcer by inhibiting matrix metalloproteinase-9 (MMP-9) expression in gastric mucosal layer. For example, disclosed is a compound of formula 1, wherein: R1 to R6 is selected from H, OH, CH3, OCH3, Br, Cl, Ph or o-OHC6H4, OCH2—CH?CH2, or OCH2CH2CH3, and R1 to R6 is having at least one substituent with alkyl, aryl and heteroaryl groups other than H, wherein the carbon in alkyl, aryl and heteroaryl is in the range of C1 to C8. Various embodiments relate to representative compounds of Formula 1 and method of preparation thereof. Further embodiments relates to the use of representative compounds of Formula 1 in treating diseases associated with gastric ulcer and other inflammatory diseases. A noted feature of an embodiment is the IC50 value of 50 ?M of one of the 3-indolyl furanoids.

Abstract: The present invention relates to compounds of general formula 1 for the treatment of bronchial asthma by inhibition of IL-4 or IL-5 pathway inhibition. The present invention also relates to the use of compound of general formula 1 for the treatment of bronchial by inhibition of IL-4 or IL-5 pathway. The present invention also relates to the method of treating asthma by inhibition of IL-4 or IL-5 pathway by administration of compound or said composition through oral, intranasal, route or by inhalation to a mammal in need thereof. Compound of general formula 1 may be used for reducing perivascular and peribronchial inflammation.

Abstract: The present invention relates to compounds of general formula 1 for the treatment of bronchial asthma by inhibition of IL-4 or IL-5 pathway inhibition. The present invention also relates to the use of compound of general formula 1 for the treatment of bronchial by inhibition of IL-4 or IL-5 pathway. The present invention also relates to the method of treating asthma by inhibition of IL-4 or IL-5 pathway by administration of compound or said composition through oral, intranasal, route or by inhalation to a mammal in need thereof. Compound of general formula 1 may be used for reducing perivascular and peribronchial inflammation.