Sodium Carbonate → HCID 86727182, compound

HRID 579358Notes

Reaction equation

HRID 579358 reaction equation
[F:1][C:2]1[C:7]([F:8])=[C:6](OS(C(F)(F)F)(=O)=O)[CH:5]=[CH:4][C:3]=1[C:17]1[S:21][C:20]([N:22]2[CH2:25][C:24]3([CH2:30][CH2:29][N:28]([C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:27][CH2:26]3)[CH2:23]2)=[N:19][N:18]=1.CC1(C)C(C)(C)OB([C:46]2[CH:47]=[N:48][NH:49][CH:50]=2)O1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:1][C:2]1[C:7]([F:8])=[C:6]([C:46]2[CH:47]=[N:48][NH:49][CH:50]=2)[CH:5]=[CH:4][C:3]=1[C:17]1[S:21][C:20]([N:22]2[CH2:25][C:24]3([CH2:30][CH2:29][N:28]([C:31]([O:33][C:34]([CH3:35])([CH3:37])[CH3:36])=[O:32])[CH2:27][CH2:26]3)[CH2:23]2)=[N:19][N:18]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 27740104-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 86727181HCID 86727181, compound

Product 1

HCID 86727182HCID 86727182, compoundYield 19%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent2×HCID 312751,4-DioxaneSolvent

Conditions

Temperature
120 °C

Procedure

A mixture of tert-butyl 2-(5-(2,3-difluoro-4-(((trifluoromethyl)sulfonyl)oxy)phenyl)-1,3,4-thiadiazol-2-yl)-2,7-diazaspiro[3.5]nonane-7-carboxylate (68 mg, 0.119 mmol) and 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (35 mg, 0.179 mmol) in dioxane (1 mL) was stirred under nitrogen atmosphere. To this suspension was added Pd(PPh3)4 (7 mg, 0.006 mmol) followed by a solution of Na2CO3 (38 mg, 0.358 mmol) in water (0.25 mL). The reaction mixture was sealed and heated at 120° C. for 1 hour under microwave irradiation. The reaction mixture was diluted with water (10 mL) and extracted with DCM (20 mL). The organic phase was separated and concentrated in vacuo to afford the crude product as an off-white solid. The crude material was purified by UV directed preparative HPLC under basic conditions (NH4OH modified) to afford he title compound as a white solid (11 mg, 19% yield). MS m/z 489.1 [M+H]+, 1H NMR (400 MHz, DMSO-d6) δ 13.30 (s, 1H), 8.18 (s, 2H), 7.85 (ddd, J=8.6, 6.7, 1.8 Hz, 1H), 7.70 (ddd, J=8.7, 7.0, 1.8 Hz, 1H), 3.91 (s, 4H), 3.28-3.31 (m, 4H), 1.74 (t, J=5.6 Hz, 4H), 1.40 (s, 9H).

Workup

  1. customThe reaction mixture was sealed
  2. extractionextracted with DCM (20 mL)
  3. customThe organic phase was separated
  4. concentrationconcentrated in vacuo
  5. customto afford the crude product as an off-white solid
  6. customThe crude material was purified by UV

Sources & evidence

ORD record
ord-f34056fe0ab34290bd57709119cffe33
Source dataset
uspto-grants-2015_05
Patent number
US09040712B2

Reaction notes

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