Diisopropylethylamine → HCID 66899622, compound

HRID 19337Notes

Reaction equation

HRID 19337 reaction equation
[Cl:1][C:2]1[CH:22]=[CH:21][CH:20]=[CH:19][C:3]=1[O:4][C:5]1[CH2:9][N:8]([C@@H:10]([CH2:14][CH2:15][S:16][CH3:17])[C:11]([OH:13])=O)[C:7](=[O:18])[CH:6]=1.[CH3:23][C:24]1([CH3:36])[O:28][C@H:27]([CH2:29][N:30]2[CH:34]=[CH:33][C:32]([NH2:35])=[N:31]2)[CH2:26][O:25]1.C(N(CC)C(C)C)(C)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>CN(C)C=O.C(OCC)(=O)C>[Cl:1][C:2]1[CH:22]=[CH:21][CH:20]=[CH:19][C:3]=1[O:4][C:5]1[CH2:9][N:8]([C@@H:10]([CH2:14][CH2:15][S:16][CH3:17])[C:11]([NH:35][C:32]2[CH:33]=[CH:34][N:30]([CH2:29][C@@H:27]3[CH2:26][O:25][C:24]([CH3:36])([CH3:23])[O:28]3)[N:31]=2)=[O:13])[C:7](=[O:18])[CH:6]=1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 59344941(R)-1-((2,2-Dimethyl-1,3-dioxolan-4-yl)methyl)-1H-pyrazol-3-amineHCID 66895427HCID 66895427, compound

Product 1

HCID 66899622HCID 66899622, compoundYield 46.4%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
25 °C

Procedure

In a round bottom flask under argon was placed (S)-2-[4-(2-chloro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methylsulfanyl-butyric acid (171 mg, 0.50 mmol) and 1-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl-methyl)-1H-pyrazol-3-ylamine (prepared as in Example 49, 118 mg, 0.60 mmol) in N,N-dimethylformamide (4 mL). To this mixture was added N,N-diisopropyethylamine (250 μL, 1.5 mmol) and (benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (331 mg, 0.75 mmol) and the mixture was stirred for 3.5 h at 25° C. After this time, the mixture was diluted with ethyl acetate (30 mL) and washed with a saturated aqueous solution of ammonium chloride (25 mL), saturated aqueous solution of sodium bicarbonate (25 mL) and a saturated aqueous solution of sodium chloride (25 mL) dried over sodium sulfate and concentrated in vacuo with silica gel (2 g). Purification by Biotage flash chromatography (Aspire 40 g column, 100% ethyl acetate) afforded (S)-2-[4-(2-chloro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-N-[1-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl-methyl)-1H-pyrazol-3-yl]-4-methylsulfanyl-butyramide (121 mg, 46%) as a white foam: HR-ES-MS m/z calculated for C24H29N4O5ClS [M+H]+ 521.1620, observed 521.1622.

Workup

  1. customIn a round bottom flask under argon was placed
  2. washwashed with a saturated aqueous solution of ammonium chloride (25 mL), saturated aqueous solution of sodium bicarbonate (25 mL)
  3. dry with materiala saturated aqueous solution of sodium chloride (25 mL) dried over sodium sulfate
  4. concentrationconcentrated in vacuo with silica gel (2 g)
  5. customPurification by Biotage flash chromatography (Aspire 40 g column, 100% ethyl acetate)

Sources & evidence

ORD record
ord-91c62d2f07f84c8dbeb530ddca5c965b
Source dataset
uspto-grants-2010_06
Patent number
US07741327B2

Reaction notes

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