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    • 8. 发明专利
    • 5-ENDO-BENZOYLOXY-N-AMINO-C2-4 ALKYL- BICYCLO-2,2,1-HEPTANE - 2,3-D-ENDO-CARBOXYLIC ACID IMIDES
    • GB1446632A
    • 1976-08-18
    • GB4403873
    • 1973-09-19
    • OHKI S
    • A61K31/40A61K31/403A61P9/06C07D209/76C07D307/00C07D307/93C07D413/06C07D403/06C07D401/06A61K31/535A61K31/495A61K31/445
    • 1446632 5-Endo-Benzoyloxy-N-[aminoalkyl]- bicyclo - [2,2,1] - heptane - 2,3 - di - endo - carboxylic acid imides S OHKI 19 Sept 1973 [20 Sept 1972] 44038/73 Heading C2C Novel compounds of the Formula I wherein R 1 , R 2 and R 3 are each H, Cl, F, Br, C 1-6 alkyl or alkoxy, NO 2 or OH, n is an integer of 2 to 4 and R 4 and R 5 are each H, C 1-6 alkyl or when taken together with the nitrogen to which they are attached are morpholino, pyrrolidino, piperidino or 4-R 6 substituted pipazino where R 6 is C 1-6 alkyl, hydrates and pharmaceutically acceptable salts thereof may be prepared by a multiple step reaction comprising (1) reacting endo - cis - bicyclo - [2,2,1] - hepto - 5 - ene - 2,3- dicarboxylic anhydride or exo-cis-bicyclo-[2,2,1]- hept-ene-2,3-dicarboxylic anhydride with a concentrated mineral acid to produce the endoendo compound II followed by (ii) reacting II with a halogenating agent at reflux temperature to produce after drying in vacuo an oily residue which is, (iii) reacted with an amine NH 2 (CH 2 ) n Z wherein Z is CN or -NR 4 R 5 in which R 4 and R 5 are other than hydrogen, provided that when Z is CN n is 1 to 3 and optionally treating the product with potassium hydroxide in aqueous alcohol to yield a compound of the Formula III (iv) reacting the compound III or the product of (iii) with a benzoyl halide wherein X is chloro, bromo or iodo and when Z is CN reducing the cyano group to a methylene amino group. Compounds I in which one of R 4 and R 6 is hydrogen may be prepared from compounds I in which both R 4 and R 5 are C 1-6 alkyl by reaction with trihaloalkyl chloroformate to yield the 5-endo-benzoyloxy-N-[3-(trihaloalkoxycarbonyl)]-3-[amino alkyl]-bicyclo-[2,2,1] heptane 2,3-di-endo-carboxylic acid imide followed by removal of the trihaloalkoxycarbonyl group. Pharmaceutical compositions of the compounds I alone or with the usual excipients show arrhythmic and/or anti-fibrillatory activity when administered.