4-Hydroxy-1,3-benzenedimethanol derivatives
US4160036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Jul 3, 1979 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D265/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the general formula (I): ##STR1## in which one or more substituents R.sub.1 may be present and in which: R.sub.1 represents a halogen atom, preferably fluorine or chlorine, or a trifluoromethyl group or a group --NR.sub.5 R.sub.6 in which R.sub.5 and R.sub.6 which may be the same or different represent a hydrogen atom, or an alkyl group containing from 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms or an acyl group, preferably the residue of a C.sub.1 -C.sub.6 alkanoic acid; PA0 X represents a straight or branched chain alkyl group containing 2 to 6 carbon atoms; and PA0 R.sub.2 and R.sub.3 which may be the same or different each represent a hydrogen atom or an alkyl group containing from 1 to 4 carbon atoms, preferably a methyl group; and PA0 R.sub.4 represents a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, are provided together with processes for the production thereof. They have a .beta..sub.2 -stimulant activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.