Repirinast
Title: Repirinast
CAS Registry Number: 73080-51-0
CAS Name: 5,6-Dihydro-7,8-dimethyl-4,5-dioxo-4H-pyrano[3,2-c]quinoline-2-carboxylic acid 3-methylbutyl ester
Additional Names: isopentyl 5,6-dihydro-7,8-dimethyl-4,5-dioxo-4H-pyrano[3,2-c]quinoline-2-carboxylate
Manufacturers' Codes: MY-5116
Trademarks: Romet (Mitsubishi)
Molecular Formula: C20H21NO5
Molecular Weight: 355.38
Percent Composition: C 67.59%, H 5.96%, N 3.94%, O 22.51%
Literature References: Prepn: BE 876751; Y. Morinaka, K. Takahashi, US 4298610 (1979, 1981 both to Mitsubishi Yuka); Y. Morinaka et al., Eur. J. Med. Chem. - Chim. Ther. 16, 251 (1981). General pharmacology in animals: K. Takahashi et al., Oyo Yakuri 32, 233 (1986), C.A. 105, 218691j (1986). Anti-allergic effects: S. Kono, K. Ohata, Arerugi 35, 1105 (1986), C.A. 106, 165870z (1987). Toxicity: M. Nagase et al., Iyakuhin Kenkyu 17, 545 (1986), C.A. 106, 108121r (1987).
Properties: Crystals from chloroform + n-hexane, mp 236-241°. LD50 in rats, mice (mg/kg): >5000 orally, >5000 s.c. both species (Nagase).
Melting point: mp 236-241°
Toxicity data: LD50 in rats, mice (mg/kg): >5000 orally, >5000 s.c. both species (Nagase)
Therap-Cat: Antiallergic.
Keywords: Antiallergic.

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