2,3-Dichlorobenzoic acid → HCID 24956429, compound

HRID 448057Notes

Reaction equation

HRID 448057 reaction equation
[Cl:1][C:2]1[C:10]([Cl:11])=[CH:9][CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=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]>>[CH2:46]([N:50]1[N:54]=[C:53]([CH3:55])[S:52]/[C:51]/1=[CH:56]\[C:4]([C:3]1[CH:7]=[CH:8][CH:9]=[C:10]([Cl:11])[C:2]=1[Cl:1])=[O:6])[CH2:47][CH2:48][CH3:49]

Participants

5

Reactant 4

HCID 57652,3-Dichlorobenzoic 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 24956429HCID 24956429, compound

Procedure

In a 20 mL vial 2,3-dichlorobenzoic 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 0.83-0.92 (m, 3 H) 1.25-1.37 (m, 2 H) 1.67-1.75 (m, 2 H) 2.50 (s, 3 H) 4.15 (t, 2 H) 6.18 (s, 1 H) 7.37-7.48 (m, 2 H) 7.64-7.69 (m, 1 H); MS (ESI) m/z 343 (M+H)+.

Workup

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

Sources & evidence

ORD record
ord-a21cd388cab441a780d41d0bd415e2a0
Source dataset
uspto-grants-2013_07
Patent number
US08481574B2

Reaction notes

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