Prophylactic or therapeutic agent for pulmonary hypertension comprising unsaturated 5-membered heterocycle-containing compound
US11413273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2017 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Jul 6, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P11/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a preventive or therapeutic agent for pulmonary hypertension, including a compound represented by the following formula (I) or a salt thereof: where: —A— represents —NH—, —S—, or —O—; R1 and R2 are identical to or different from each other, and each represent a hydrogen atom or an alkyl group; R3 represents a hydrogen atom, a halogen atom, or an alkyl group; R4 represents a hydrogen atom or an alkyl group; R5 represents a hydrogen atom or an alkyl group; R6 and R7 are identical to or different each other, and each represent a hydrogen atom, a halogen atom, or an alkyl group; and R6 and R7 may form an unsaturated hydrocarbon six-membered ring together with a carbon atom to which R6 is bonded and a carbon atom to which R7 is bonded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.