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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 924027Generated: November 2, 2026

Acetic Anhydride → HCID 118195207, compound

https://huagongshe.com/reaction/924027

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantSodium CarbonateHCID 10340—
ReactantHCID 89906864HCID 89906864—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 118195207HCID 118195207—

Reaction Steps

(S)-6-(3-(Aminomethyl)pyrrolidin-1-yl)-N-(4-(chlorodifluoromethoxy)phenyl)-5-(pyrimidin-5-yl)nicotinamide (Example 177, 30 mg, 0.063 mmol) was dissolved in dioxane (0.5 mL), acetic anhydride (7.09 mg, 0.069 mmol) was added and the RM was stirred for 3 h at RT. The RM was poured into 15 mL of Na2CO3 10%, then extracted with EtOAc. The combined organic layers were dried over Na2SO4 and evaporated to dryness under reduced pressure, dissolved in MeOH, evaporated and dried under HV to afford the title compound as an off-white solid. HPLC (Condition 4) tR=4.95 min, UPLC-MS (Condition 3) tR=0.93 min, m/z=517.3 [M+H]+; 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.44-1.60 (m, 1H) 1.75 (s, 3H) 1.79-1.93 (m, 1H) 2.15-2.31 (m, 1H) 2.86-3.02 (m, 3H) 3.04-3.20 (m, 2H) 3.23-3.36 (m, 1H) 7.33 (d, J=8.21 Hz, 2H) 7.77-7.93 (m, 3H) 8.08 (d, J=2.35 Hz, 1H) 8.77 (d, J=0.78 Hz, 1H) 8.87 (s, 2H) 9.17 (s, 1H) 10.16 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278981B2
Source datasetuspto-grants-2016_03
ORD IDord-cbc5dabe1af14de084f4c30b11d5f8be
Source noteuspto-grants-2016_03