Lafutidine
Title: Lafutidine
CAS Registry Number: 118288-08-7
CAS Name: 2-[(2-Furanylmethyl)sulfinyl]-N-[(2Z)4-[[4-(1-piperidinylmethyl)-2-pyridinyl]oxy]-2-butenyl]-acetamide
Additional Names: 2-(furfurylsulfinyl)-N-[(Z)-4-[[4-(piperidinomethyl)-2-pyridyl]oxy]-2-butenyl]acetamide
Manufacturers' Codes: FRG-8813
Trademarks: Protecadin (Taiho); Stogar (Fujirebio)
Molecular Formula: C22H29N3O4S
Molecular Weight: 431.55
Percent Composition: C 61.23%, H 6.77%, N 9.74%, O 14.83%, S 7.43%
Literature References: Second generation histamine H2-receptor antagonist. Prepn of racemate: N. Hirakawa et al., EP 282077; eidem, US 4912101 (1988, 1990 both to Fujirebio); and pharmacology: eidem, Chem. Pharm. Bull. 46, 616 (1998). Pharmacology: S. Onodera et al., Jpn. J. Pharmacol. 68, 161 (1995). Mode of action study: M. Umeda et al., J. Gastroenterol. Hepatol. 14, 859 (1999). Gastroprotective effects in rats: H. Ajioka et al., Pharmacology 61, 83 (2000). Clinical pharmacokinetics: S. Haruki et al., Yakuri to Chiryo 23, 3049 (1995). Toxicology study: A. Broadmeadow et al., Oyo Yakuri 50, 167 (1995).
Properties: Prepd as the (±) mixture, crystals from benzene-hexane, mp 92.7-94.9°. Slightly bitter taste. Freely sol in DMF, glacial acetic acid; sol in methanol; sparingly sol in dehydrated ethanol; very slightly sol in ether. Practically insol in water.
Melting point: mp 92.7-94.9°
Therap-Cat: Antiulcerative.
Keywords: Antiulcerative; Histamine H2-Receptor Antagonist.

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