HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 924027Generated: November 2, 2026
Acetic Anhydride → HCID 118195207, compound
https://huagongshe.com/reaction/924027
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | HCID 89906864 | HCID 89906864 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 118195207 | HCID 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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09278981B2 |
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| Source dataset | uspto-grants-2016_03 |
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| ORD ID | ord-cbc5dabe1af14de084f4c30b11d5f8be |
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| Source note | uspto-grants-2016_03 |
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