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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1930626Generated: October 30, 2026

Acetic Anhydride → 1-(2-(4-(2-Methyl-1H-imidazol-1-yl)phenylamino)-4-((tetrahydro-2H-pyran-4-yl)methyl)-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)ethanone

https://huagongshe.com/reaction/1930626

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantN-(4-(2-methyl-1H-imidazol-1-yl)phenyl)-4-((tetrahydro-2H-pyran-4-yl)methyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-amineHCID 59333818—
Product1-(2-(4-(2-Methyl-1H-imidazol-1-yl)phenylamino)-4-((tetrahydro-2H-pyran-4-yl)methyl)-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)ethanoneHCID 4619927315.3%

Reaction Steps

1-(2-(4-(2-Methyl-1H-imidazol-1-yl)phenylamino)-4-((tetrahydro-2H-pyran-4-yl)methyl)-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)ethanone (27.0 mg, 15.3%) was synthesised from N-(4-(2-methyl-1H-imidazol-1-yl)phenyl)-4-((tetrahydro-2H-pyran-4-yl)methyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-amine (Example 61a) and acetic anhydride according to the general procedure for N-acetylation. MS (ES+) m/z 447.2 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188101B2
Source datasetuspto-grants-2012_05
ORD IDord-3029992e9376481184fab11246313f0b
Source noteuspto-grants-2012_05