Triethylamine → HCID 86710512, compound

HRID 341437Notes

Reaction equation

HRID 341437 reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([N:8]([CH2:15][CH2:16][O:17][CH3:18])[C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[N:5]=[C:4]([C:19]2[N:23]=[C:22]([C:24]3[CH:25]=[CH:26][C:27]([CH2:30][OH:31])=[N:28][CH:29]=3)[O:21][N:20]=2)[N:3]=1.[CH3:32][S:33](Cl)(=[O:35])=[O:34].C(N(CC)CC)C>C(Cl)Cl>[NH2:1][C:2]1[N:7]=[C:6]([N:8]([CH2:15][CH2:16][O:17][CH3:18])[C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)[N:5]=[C:4]([C:19]2[N:23]=[C:22]([C:24]3[CH:25]=[CH:26][C:27]([CH2:30][O:31][S:33]([CH3:32])(=[O:35])=[O:34])=[N:28][CH:29]=3)[O:21][N:20]=2)[N:3]=1

Participants

5

Reactant 3

HCID 8471Triethylamine2×HCID 31297Methanesulfonyl chloride2×HCID 66803022HCID 66803022, compound2×

Product 1

HCID 86710512HCID 86710512, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of [5-(3-{4-amino-6-[(2-methoxy-ethyl)-phenyl-amino]-[1,3,5]triazin-2-yl}-[1,2,4]oxadiazol-5-yl)-pyridin-2-yl]-methanol (Intermediate 130, 185 mg, 0.44 mmol) in DCM (40 mL) was added methanesulfonyl chloride (48 μL, 0.61 mmol) drop-wise, followed by triethylamine (92 μL, 0.66 mmol). The resulting solution was stirred for 3 h under an inert atmosphere. Incomplete reaction was observed so additional methanesulfonyl chloride (9 μL, 0.10 mmol) and triethylamine (16 μL, 0.11 mmol) were added and stirring was continued for 1 h. The reaction mixture was washed with water (2×50 mL) and the organic phase dried over magnesium sulfate and evaporated to dryness to afford the methanesulfonic acid 5-(3-{4-amino-6-[(2-methoxy-ethyl)-phenyl-amino]-[1,3,5]triazin-2-yl}-[1,2,4]oxadiazol-5-yl)-pyridin-2-ylmethyl ester intermediate. In a separate flask 2,2,2-trifluoro-ethanol (190 μL, 2.64 mmol) was added dropwise to a suspension of sodium hydride (60% dispersion in mineral oil, 97 mg, 2.42 mmol) in anhydrous THF (30 mL) at 0 C under nitrogen. The resulting solution was stirred at 0 C for 30 min and then transferred via cannula to a solution of the methanesulfonic acid 5-(3-{4-amino-6-[(2-methoxy-ethyl)-phenyl-amino]-[1,3,5]triazin-2-yl}-[1,2,4]oxadiazol-5-yl)-pyridin-2-ylmethyl ester intermediate (220 mg, 0.44 mmol) in anhydrous THF (30 mL) at 0 C drop wise. The reaction mixture was stirred at room temperature for 18 h. The reaction was quenched with a saturated ammonium chloride aq. solution (5 mL) and extracted with EtOAc (3×50 mL). Combined organics were washed with brine (25 mL), dried over magnesium sulfate and evaporated to dryness. The crude product was purified by silica chromatography (2% MeOH in DCM) and then further by preparative HPLC-MS (Method C) to afford the title compound as an off-white solid (21 mg, 10%).

Workup

  1. customIncomplete reaction
  2. additionwere added
  3. stirringstirring
  4. waitwas continued for 1 h
  5. washThe reaction mixture was washed with water (2×50 mL)
  6. dry with materialthe organic phase dried over magnesium sulfate
  7. customevaporated to dryness

Sources & evidence

ORD record
ord-f238bd90a4b64adf9635bd18278e2a41
Source dataset
uspto-grants-2014_11
Patent number
US08895733B2

Reaction notes

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