5-Bromo-2-chlorobenzoic acid → HCID 69188223, compound

HRID 448069Notes

Reaction equation

HRID 448069 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([Cl:11])=[C:6]([CH:10]=1)[C:7]([OH:9])=O.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-].[CH2:46]([N+:50]1[N:54]=[C:53]([CH3:55])[S:52][C:51]=1[CH3:56])[CH2:47][CH2:48][CH3:49]>>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([Cl:11])=[C:6]([C:7](=[O:9])/[CH:56]=[C:51]2\[S:52][C:53]([CH3:55])=[N:54][N:50]\2[CH2:46][CH2:47][CH2:48][CH3:49])[CH:10]=1

Participants

5

Reactant 4

HCID 331275-Bromo-2-chlorobenzoic 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 69188223HCID 69188223, compound

Procedure

In a 20 mL vial 5-bromo-2-chlorobenzoic 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 0.89 (t, 3 H) 1.25-1.36 (m, 2 H) 1.68-1.76 (m, 2 H) 2.51 (s, 3 H) 4.16 (t, 2 H) 6.26 (s, 1 H) 7.42-7.46 (m, 1 H) 7.58-7.63 (m, 1 H) 7.65-7.68 (m, 1 H); MS (ESI) m/z 387 (M+H)+.

Workup

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

Sources & evidence

ORD record
ord-636cde53920b4af089b30634723c9197
Source dataset
uspto-grants-2013_07
Patent number
US08481574B2

Reaction notes

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