CH605891

1417462 Chromone derivatives TAKEDA YAHUHIN KOGYO KK 12 April 1973 [12 April 1972] 14972/75 Divided out of 1417461 Heading C2C The invention comprises compounds having the general formula wherein n is 0 or 1; m is 0, 1 or 2, when each of the R radicals is halogen, nitro, straight or branched C 1 to...

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Bibliographic Details
Main Authors YASUSHI SANNO, AKIRA NOHARA, TOMONOBU UMETANI
Format Patent
LanguageEnglish
Published 13.10.1978
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary:1417462 Chromone derivatives TAKEDA YAHUHIN KOGYO KK 12 April 1973 [12 April 1972] 14972/75 Divided out of 1417461 Heading C2C The invention comprises compounds having the general formula wherein n is 0 or 1; m is 0, 1 or 2, when each of the R radicals is halogen, nitro, straight or branched C 1 to C 6 alkyl, C 3 to C 6 cycloalkyl, butadienylene (-CH = CH-CH = CH-) which forms a benzene ring with any two adjacent carbon atoms at positions 5, 6, 7 and 8, -COOR1, (where R1 is hydrogen, C 1 to C 3 alkyl or aralkyl) carboxamide (optionally substituted by alkyl or aralkyl), or amino (optionally substituted by R11CO-, where R11 is straight or branched alkyl or aryl), or C 1 to C 3 alkyl, aralkyl or aryl; and m is 0 or 1 when each R is hydroxy, C 1 to C 4 alkoxy or R111COO-, where R111 is straight or branched alkyl or aryl. The compounds of the invention may be prepared by reacting a compound of the formula with hydroxylamine or cyanoacetic acid. The compounds of the invention exhibit pharmaceutical activity.
Bibliography:Application Number: CH19770001279