INDENOINDOLE COMPOUNDS

Malcolm Sainsbury (Inventor), Howard Shertzer (Inventor)

Research output: Patent

Abstract

Compounds of formulae (IA) and (IB), wherein R is hydrogen or a lower alkyl group, R?1 and R?2 are independently selected from hydrogen or a lower alkyl group, R?3, R?4 and R?6 are independently selected from hydrogen, halogen or a lower alkyl group, R?5 is hydrogen, hydroxy, halogen, a lower alkyl group, a lower alkoxy group, a mono- or di-lower alkylamino group, NH2? or NR?11 COR?12, R?7, R?8, R?9 and R?10 are independently selected from hydrogen, hydroxy, a lower alkyl group, a lower alkoxy group, a mono- or di-lower alkylamino group, NH2? or NR?11 COR?12, R?11 is a hydrogen or a lower alkyl group, R?12 is a lower alkyl group, with the proviso that when R is hydrogen then at least one of the substituents R?1 to R?10 is not hydrogen, or a salt thereof, are useful as antioxidants, within the medical and non-medical field, and that when R is hydrogen, methyl or neopentyl in formula (IA), then at least one of R?1 to R?10 is not hydrogen. Many of the compounds of formulae (IA) and (IB) are new and various methods for preparing them are described.
Original languageEnglish
Patent numberWO9015800A1
Priority date22/06/89
Filing date20/06/90
Publication statusPublished - 27 Dec 1990

Fingerprint Dive into the research topics of 'INDENOINDOLE COMPOUNDS'. Together they form a unique fingerprint.

Cite this