4-Bromobenzoic acid → HCID 24956060, compound

HRID 448047Notes

Reaction equation

HRID 448047 reaction equation
[Br:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=O)=[CH:4][CH:3]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[I-].[CH2:45]([N+:49]1[N:53]=[C:52]([CH3:54])[S:51][C:50]=1[CH3:55])[CH2:46][CH2:47][CH3:48]>>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:6](=[O:8])/[CH:55]=[C:50]2\[S:51][C:52]([CH3:54])=[N:53][N:49]\2[CH2:45][CH2:46][CH2:47][CH3:48])=[CH:9][CH:10]=1

Participants

5

Reactant 4

HCID 114644-Bromobenzoic acidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 691879173-Butyl-2,5-dimethyl-1,3,4-thiadiazol-3-ium iodide

Product 1

HCID 24956060HCID 24956060, compound

Procedure

In a 20 mL vial 4-bromobenzoic acid (0.9 mL of 0.2 M in DMA, 1.10 equiv) was added followed by the addition of HATU (76 mg in 0.7 mL of DMA, 0.2 mmol, 1.20 equiv.), DIEA (51 mg in 0.7 mL of DMA, 0.4 mmol, 2.40 equiv.), and finally 3-butyl-2,5-dimethyl-1,3,4-thiadiazol-3-ium iodide (49 mg in 0.7 mL of DMA, 0.17 mmol, 1 equiv.). The mixture was shaken overnight at room temperature and then concentrated in vacuo. The resulting residue was taken up in 1:1 DMSO/MeOH and purified by reverse phase HPLC using a method analogous to that described in Example 53 to provide the title compound. 1H NMR (500 MHz, DMSO-d6/D2O) δ ppm 0.85-0.94 (m, 3 H) 1.28-1.39 (m, 2 H) 1.67-1.80 (m, 2 H) 2.49 (s, 3 H) 4.20-4.23 (m, 2 H) 6.70 (m, 1 H) 7.64 (d, 2 H) 7.94 (d, 2 H); MS (ESI) m/z 353 (M+H)+.

Workup

  1. concentrationconcentrated in vacuo
  2. custompurified by reverse phase HPLC

Sources & evidence

ORD record
ord-ff04103f59204dee94a61cecef7175f1
Source dataset
uspto-grants-2013_07
Patent number
US08481574B2

Reaction notes

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