摘要:
A process for the purification of water-soluble non-ionic contrast agents from water-soluble non-ionic impurities involves the steps of (a) injecting a raw water-soluble non-ionic contrast agent solution on a chromatographic column containing non-ionic resins; (b) eluting water-soluble impurities contained in the raw water-soluble non-ionic contrast agent solution with deionized water as a first eluent, and (c) eluting a water-soluble non-ionic contrast agent with alcohol as a second eluent.
摘要:
A process for preparing an angiotensin converting enzyme inhibitor. Phosphorus pentachloride is reacted with the carboxylic acid group of an amino acid to form an acyl chloride hydrochloride. The resulting hydrochloride salt is then coupled with a silylated amino acid in a non-aqueous medium to form a high yield peptide. The peptide is used as an angiotensin converting enzyme (ACE) inhibitor.
摘要:
A pharmaceutical composition for preventing or treating hepatitis C is provided, including oleanolic acid derivatives as an active ingredient and a pharmaceutically acceptable carrier. A method for preventing or treating hepatitis C in a subject in need thereof is also provided by administering the subject the pharmaceutical composition given above.
摘要:
A composition used for skin whitening includes: an effective amount of spermidine derivative, wherein a structure of the spermidine derivative is shown as Structure (I): where R1-R5 individually includes H, OH, or OCH3 and at least one of R1-R5 is OH, and the spermidine derivative has tyrosinase inhibition activity; and a cosmetically or pharmaceutically acceptable vehicle, wherein the composition used for skin whitening whitens skin.
摘要:
The invention provides an anti-hepatitis C composition including: an effective amount of limonoid compound, wherein the structure of the limonoid compound is shown as Structure (I): where R1 comprises H or OAc and R2 comprises H or COCH(CH3)2; and a pharmaceutically acceptable carrier or salt, and the anti-hepatitis C composition is used for inhibiting hepatitis C virus or treating hepatitis C. The invention also provides a method for treating hepatitis C and a method for preparing a drug for inhibiting hepatitis C viruses or treating hepatitis C.
摘要:
A pharmaceutical composition prepared from a Boehmeria species. This composition can be used to improve liver function and treat liver disease, and promoting liver tissue regeneration.
摘要:
A pharmaceutical composition for preventing or treating hepatitis C is provided, including oleanolic acid derivatives as an active ingredient and a pharmaceutically acceptable carrier. A method for preventing or treating hepatitis C in a subject in need thereof is also provided by administering the subject the pharmaceutical composition given above.