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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 44858Generated: October 25, 2026

Acetyl chloride → (R)-N-(4-(7-ethyl-8-isopropyl-5-methyl-6-oxo-5,6,7,8-tetrahydropteridin-2-yl)pyridin-3-yl)acetamide

https://huagongshe.com/reaction/44858

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetyl chlorideHCID 6367—
ReactantTrifluoroacetic acidHCID 6422—
Reactant(R)-2-(3-aminopyridin-4-yl)-7-ethyl-8-isopropyl-5-methyl-7,8-dihydropteridin-6(5H)-oneHCID 58405288—
Product(R)-N-(4-(7-ethyl-8-isopropyl-5-methyl-6-oxo-5,6,7,8-tetrahydropteridin-2-yl)pyridin-3-yl)acetamideHCID 58405774—

Reaction Steps

The title compound was prepared similarly to the methods described in Example 114, with (R)-2-(3-aminopyridin-4-yl)-7-ethyl-8-isopropyl-5-methyl-7,8-dihydropteridin-6(5H)-one (Example 93) instead of (R)-2-(3-aminopyridin-4-yl)-8-cyclopentyl-7-ethyl-5-methyl-7,8-dihydropteridin-6(5H)-one (Example 91) and with acetyl chloride instead of chloromethylcarbonate. LCMS (0.05% TFA): 369.1 m/z (M+H)+; 1H-NMR (DMSO-d6, 500 MHz): δ: 9.71 (s, 1H), 8.43 (d, 1H, J=5.0 Hz), 8.27 (d, 1H, J=5.0 Hz), 8.25 (s, 1H), 4.59 (m, 1H), 4.49 (m, 1H), 3.38 (s, 3H), 2.26 (s, 3H), 1.92 (m, 1H), 1.80 (m, 1H), 1.47 (t, 6H, J=6 Hz), 0.81 (t, 3H, J=7.5 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541418B2
Source datasetuspto-grants-2013_09
ORD IDord-fa9d388e18b44d52823a688017f7c7de
Source noteuspto-grants-2013_09