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Volumn 42, Issue 2, 1999, Pages 121-127

Atorvastatin, an HMG-CoA reductase inhibitor and efficient lipid-regulating agent. Part I. Synthesis of ring-labeled [14C]atorvastatin

Author keywords

Carbon 14 synthesis; HMG CoA reductase inhibitor; Lipid regulating agents; 14C pyrrole ring labeled atorvastatin (Lipitor )

Indexed keywords

AROMATIC COMPOUNDS; CONDENSATION; KETONES; SALTS;

EID: 0033064955     PISSN: 03624803     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1099-1344(199902)42:2<121::AID-JLCR173>3.0.CO;2-Z     Document Type: Article
Times cited : (6)

References (15)
  • 12
    • 85167473303 scopus 로고    scopus 로고
    • note
    • In cold runs, the E- and Z-components were separated by silica gel column chromatography (elution with hexane:dichloromethane:EtOAc/9:1:1). TLC (silica gel, pentane:ether/2:1): E-isomer, Rf 0.52; Z-isomer, Rf 0.31. The configuration of the Z-isomer, crystals from ethyl acetate-cyclohexane, was established by single crystal X-ray crystallography. The Z-isomer is favored thermodynamically and the E-isomer is favored kinetically during synthesis.
  • 14
    • 85167477963 scopus 로고    scopus 로고
    • note
    • -1, log ε = 4.33, and is 247 nm in the mobile phase under HPLC conditions. Chemical purity by HPLC is defined as purity by area normalization at a chosen wavelength (e.g., 254 nm for 15, as specified for purity determination of the drug), generally near the absorption maximum with consideration being given to the the absorption characteristics of the impurities. During melting point determination (glass capillary, oil bath), atorvastatin, being a calcium salt, decomposed (shrinking, then expanding, and finally melting) over a wide temperature range of approximately 160 to 240 °C.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.