Carboxylic acid derivatives
US5081245A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1989 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Aug 18, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D401/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound represented by the formula: ##STR1## wherein R represents a hydrogen atom or a lower alkyl group; PA0 R.sup.1 represents a higher alkyl group which may be substituted; PA0 R.sup.2 represents a hydrogen atom or a lower alkyl group, a lower alkanoyl group or a nitrogen-containing 5- to 7-membered heterocyclic group each of which may be substituted; X represents a divalent group represented by the formula: EQU --(OCH.sub.2 CH.sub.2).sub.p -- PA0 wherein p represents an integer of 1 to 5, a divalent group represented by the formula: EQU --O(CH.sub.2).sub.q -- PA0 wherein q represents an integer of 3 to 8, or a divalent group represented by the formula: EQU --(OCH.sub.2 CH.sub.2).sub.p --J--(CH.sub.2).sub.q -- PA0 wherein J represents an oxygen atom or a group represented by the formula: --S(O).sub.r -- (wherein r represents 0, 1 or 2), and p and q are the same as defined above; Y represents a divalent group containing tertiary or quaternary nitrogen atom(s); and Z represents an alkylene group which may be substituted and/or interrupted, or a group represented by the formula: EQU --Q--T-- or --T--W-- PA0 wherein Q and W represent an alkylene group which may be substituted, an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.