Products of a microbiological process for the production of 2-halo-pyrimidine-4-carboxylic acids
US5591853A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1994 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Nov 23, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12R2001/40
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A 2-halo-pyrimidine-4-carboxylic acid of formula: ##STR1## wherein X is a halogen atom, for example, 2-chloro-pyrimidine-4-carboxylic acid. A 2-substituted-pyrimidine-4-carboxylic acid derivative of formula: ##STR2## wherein R.sub.1 is a halogen atom, NH.sub.2 --, HO-- or a C.sub.1 -C.sub.4 alkoxy group and R.sub.2 is a C.sub.1 -C.sub.4 alkoxy group or a halogen atom with the proviso that, if R.sub.1 is a HO-- group, R.sub.2 is not a halogen atom and with the proviso that, if R.sub.2 is a halo group, R.sub.1 is not an amino group. A 2-substituted-pyrimidine-4-carboxylic acid derivative of formula III wherein R.sub.1 is a HO-- group and R.sub.2 is an ethoxy group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.