Pharmacokinetics and excretion of the novel anti-tuberculosis compound 1,2:5,6-di-O-isopropylidene-3-O-(phenyl cyclopropyl methanonyl)-alpha-D-glucofuranose (S-001-14) after oral doses in rats. Development of a sensitive and reproducible high performance liquid chromatography-UV method for the determination of the test compound in rat serum.
A sensitive and reproducible high performance liquid chromatography (HPLC)-UV method for the determination of the novel anti-tuberculosis compound 1,2:5,6-di-O-isopropylidene-3-O-(phenyl cyclopropyl methanonyl)-alpha-D-glucofuranose (S-001-14) has been developed and validated in rat serum, urine and feces. Following extraction with hexane at alkaline pH, samples were separated on a reverse phase C18 column and quantified using UV detection at 267 nm. The mobile phase was 70% acetonitrile in ammonium acetate buffer (10 mmol/L, pH 6.0) with a flow rate of 1.0 ml/min. The method was used to determine the pharmacokinetics and excretion of S-001-14 after oral doses in rats. Linearity was satisfactory over the concentration range of 5-500 ng/ml (r2, > 0.99). Recoveries were > 90% and were consistent throughout the calibration range. The precision and accuracy were acceptable as indicated by relative standard deviation ranging from 2.72 to 9.54%, bias values ranging from 1.62 to 12.05%. Moreover, S-001-14 was stable in rat serum after being subjected to three freeze-thaw cycles and for 30 days on storage at - 60 degrees C. The method was used to determine the serum concentration-time profiles for S-001-14 after oral doses of 4, 100 and 200 mg/kg in rats. A linear pharmacokinetics was found in rats at 100 and 200 mg/kg doses with a long elimination half-life (approximately 24 h), wide distribution and bioavailability of approximately 13%. The excretion study after the 100 mg/kg oral dose revealed that S-001-14 was excreted in urine (0.002 +/- 0.001%) and feces (15.6 +/- 3.5%).
Lal
Jawahar
J
Pharmacokinetics and Metabolism Division, Central Drug Research Institute, Lucknow, India. jlalcdri@rediffmail.com
Tripathi
Rama Pati
RP
Gupta
Ram Chandra
RC
D000818:Animals; D000995:Antitubercular Agents / Q000008:administration & dosage / Q000097:blood / Q000493:pharmacokinetics*; D002138:Calibration; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002851:Chromatography, High Pressure Liquid; D005243:Feces / Q000737:chemistry; D005615:Freezing; D008297:Male; D015233:Models, Statistical; D009025:Morpholines / Q000008:administration & dosage / Q000097:blood / Q000493:pharmacokinetics*; D011804:Quinolines / Q000008:administration & dosage / Q000097:blood / Q000493:pharmacokinetics*; D051381:Rats; D017207:Rats, Sprague-Dawley; D012015:Reference Standards; D015203:Reproducibility of Results; D012995:Solubility; D013056:Spectrophotometry, Ultraviolet
D000995:Antitubercular Agents; D009025:Morpholines; D011804:Quinolines; C077690:S 14001