Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-01-17
2006-01-17
Solola, Taofiq (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C549S403000
Reexamination Certificate
active
06987126
ABSTRACT:
Disclosed is a neutralizing agent for aclostridiumbacterial neurotoxin and a preparation method thereof. The neutralizing agent contains a flavonol glycoside (A) or a flavonol glycoside (B). The flavonol glycoside (A) has a flavone skelton which has two hydroxyl groups at the 5 and 7 positions, at least one hydroxyl group bonding at either one of the 3′, 4′ and 5′ positions, and an ether linkage forming glycoside at the 3 position with a carbohydrate chain containing a rutinose skelton. The flavonol glycoside (B) has also another ether linkage at the 4′ position with a carbohydrate chain containing rhamnose. The neutralizing agent is prepared by separating the thearubigin fraction of black tea extract by elution with methanol/water solvent using a reverse phase liquid chromatography. A fraction eluted with methanol/water solvent containing 40% methanol and a fraction eluted with methanol/water solvent containing 60% methanol have high neutralizing activity, and at least one of them is collected.
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Nishimura Masakazu
Sakane Iwao
Sawamura Shin-ichi
Ito En Ltd.
Solola Taofiq
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