Diisopropylethylamine → HCID 44201112, compound

HRID 2061174Notes

Reaction equation

HRID 2061174 reaction equation
[OH:1][CH:2]([CH:6]([CH3:8])[CH3:7])[C:3](O)=[O:4].CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:42][N:43]1[C:52]2[C:47](=[CH:48][N:49]=[C:50]([CH3:53])[CH:51]=2)[CH:46]=[C:45]([C:54]2[CH:55]=[C:56]([NH:61]/[C:62](/[NH2:65])=[N:63]/O)[CH:57]=[CH:58][C:59]=2[CH3:60])[C:44]1=[O:66]>CN(C=O)C>[OH:1][CH:2]([C:3]1[O:4][N:63]=[C:62]([NH:61][C:56]2[CH:57]=[CH:58][C:59]([CH3:60])=[C:54]([C:45]3[C:44](=[O:66])[N:43]([CH3:42])[C:52]4[C:47]([CH:46]=3)=[CH:48][N:49]=[C:50]([CH3:53])[CH:51]=4)[CH:55]=2)[N:65]=1)[CH:6]([CH3:8])[CH3:7]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 99823(+-)-2-Hydroxyisovaleric acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 178422078HCID 178422078, compound2×

Product 1

HCID 44201112HCID 44201112, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
100 °C

Procedure

To a solution of 2-hydroxy-3-methylbutanoic acid (70 mg, 0.6 mmol) in DMF (6 mL) were added DIPEA (0.125 mL, 0.7 mmol) and HATU (0.23 g, 0.6 mmol). After stirring at rt for 15 min 17 (0.2 g, 0.6 mmol) was added as a solution in DMF (2 mL). The reaction was stirred at rt until complete consumption of 17 was determined by LC/MS and then was heated at 100° C. for 1 h. The reaction was cooled to rt, purified by preparative LCMS to afford crude material, which was further purified by flash column chromatography on silica with DCM/2% MeOH as eluant to give 3-(5-(5-(1-hydroxy-2-methylpropyl)-1,2,4-oxadiazol-3-ylamino)-2-methylphenyl)-1,7-dimethyl-1,6-naphthyridin-2(1H)-one (A64) as an off white solid. 1H NMR (400 MHz, CD4OD) δ 8.76 (s, 1H), 7.93 (s, 1H), 7.47 (s, 1H), 7.39 (dd, J=8, 2 Hz, 1H), 7.36 (d, J=2 Hz, 1H), 7.22 (d, J=8 Hz, 1H), 4.51 (d, J=6 Hz, 1H), 3.76 (s, 3H), 2.69 (s, 3H), 2.16 (m, 1H), 2.14 (s, 3H), 1.02 (d, J=6 Hz, 3H), 0.94 (d, J=6 Hz, 3H). MS m/z 420.4 (M+1).

Workup

  1. temperatureThe reaction was cooled to rt
  2. custompurified by preparative LCMS
  3. customto afford crude material, which
  4. customwas further purified by flash column chromatography on silica with DCM/2% MeOH as eluant

Sources & evidence

ORD record
ord-7c91881600a94b2c88e52f1ac46aa2a3
Source dataset
uspto-grants-2012_10
Patent number
US08278452B2

Reaction notes

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