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US 2020/0399277 A1Published application
[1,2,4]triazolo[4,3-a]pyrazin-8-one derivatives
AssigneeEli Lilly and Company
InventorsNicholas Paul CAMP, Chafiq HAMDOUCHI, Jayana Pankaj LINESWALA, John Richard MORPHY, Qing SHI
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Abstract
The present invention provides a compound of Formula I: wherein R1 is methyl, ethyl or cyclopropyl; R2 is hydrogen, methyl, or ethyl; R3 is methyl or AA; and R4 is C2-C4 alkyl, BB; or a pharmaceutically acceptable salt thereof; for use as a PDE1 inhibitor.
Claims15
A compound of the formula:
- wherein R1 is methyl, ethyl or cyclopropyl;
- R2 is hydrogen, methyl, or ethyl;
- R3 is methyl or
- and
- R4 is C2-C4 alkyl,
- or a pharmaceutically acceptable salt thereof.
3 more elements
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.