1,1'-Thiocarbonyldiimidazole → 3-((E)-4-((E)-2-Phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)styryl)-1,2,4-oxadiazole-5(4H)-thione

HRID 1057205Notes

Reaction equation

HRID 1057205 reaction equation
[OH:1]/[N:2]=[C:3](\[NH2:37])/[CH:4]=[CH:5]/[C:6]1[CH:11]=[CH:10][C:9](/[C:12](/[C:22]2[CH:23]=[C:24]3[C:28](=[CH:29][CH:30]=2)[N:27]([CH:31]2[CH2:36][CH2:35][CH2:34][CH2:33][O:32]2)[N:26]=[CH:25]3)=[C:13](\[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)/[CH2:14][CH3:15])=[CH:8][CH:7]=1.[C:38](N1C=CN=C1)(N1C=CN=C1)=[S:39].C1CCN2C(=NCCC2)CC1>C(#N)C>[C:16]1(/[C:13](/[CH2:14][CH3:15])=[C:12](\[C:9]2[CH:8]=[CH:7][C:6](/[CH:5]=[CH:4]/[C:3]3[NH:37][C:38](=[S:39])[O:1][N:2]=3)=[CH:11][CH:10]=2)/[C:22]2[CH:23]=[C:24]3[C:28](=[CH:29][CH:30]=2)[N:27]([CH:31]2[CH2:36][CH2:35][CH2:34][CH2:33][O:32]2)[N:26]=[CH:25]3)[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1

Participants

5

Reactant 3

HCID 802641,1'-ThiocarbonyldiimidazoleHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 87765319(E)-N'-hydroxy-3-[4-[(E)-1-[1-(oxan-2-yl)indazol-5-yl]-2-phenylbut-1-enyl]phenyl]prop-2-enimidamide2×

Product 1

HCID 1784408353-((E)-4-((E)-2-Phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)styryl)-1,2,4-oxadiazole-5(4H)-thioneYield 71.7%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of (1Z,2E)-N′-hydroxy-3-(4-((E)-2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenyl)acrylimidamide (90 mg, 0.18 mmol; Compound 435, Step 2) and thiocarbonyldiimidazole (50 mg, 0.28 mmol) in anhydrous acetonitrile (1.5 mL) was added DBU (0.11 mL, 0.72 mmol). The solution was stirred at room temperature for 4 h then directly concentrated onto silica gel. Purification by column chromatography (0 to 80% EtOAc/hexanes) afforded 69 mg of the title compound as an orange oil. LCMS: 451 [(M-THP+H)+H]+.

Workup

  1. concentrationthen directly concentrated onto silica gel
  2. customPurification by column chromatography (0 to 80% EtOAc/hexanes)

Sources & evidence

ORD record
ord-cdcc83ecce8d44dbafb49d3f44bab892
Source dataset
uspto-grants-2016_07
Patent number
US09399646B2

Reaction notes

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