(E)-2-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-ethenesulfonic acid amide → 2-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)ethanesulfonamide

HRID 1800280Notes

Reaction equation

HRID 1800280 reaction equation
[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[C:21](/[CH:23]=[CH:24]/[S:25]([NH2:28])(=[O:27])=[O:26])[CH:20]=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2]>C(Cl)Cl.[Pd]>[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[C:16]4[CH:19]=[CH:20][C:21]([CH2:23][CH2:24][S:25]([NH2:28])(=[O:26])=[O:27])=[CH:22][C:15]=4[O:14][CH2:13][CH2:12][N:11]3[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2]

Participants

4

Reactant 1

HCID 58204452(E)-2-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-ethenesulfonic acid amide

Product 1

HCID 582044572-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)ethanesulfonamideYield 49%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of (E)-2-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-ethenesulfonic acid amide (151 mg, 0.38 mmol) in DCM (5 mL) and IMS (2 mL) was added 10% palladium on carbon (150 mg, 10%). The reaction mixture was stirred at RT under an atmosphere of hydrogen for 16 h. The reaction mixture was filtered and the filtrate concentrated in vacuo. The resultant residue was subjected to reverse phase preparative HPLC (C18, eluting with 10-90% acetonitrile in H2O, 0.1% formic acid, 25 min gradient) to yield 445 as a white solid (74 mg, 49%). LCMS: RT=3.24 min, [M+H]+=403. 1H NMR 400 MHz 6 (DMSO-d6): 8.29 (1H, d, J=8.7 Hz), 7.87 (1H, s), 7.86 (1H, s), 7.02 (1H, dd, J=8.5, 1.8 Hz), 6.93 (1H, d, J=1.8 Hz), 6.83 (2H, br s), 5.84 (1H, sept, J=6.6 Hz), 4.52-4.41 (4H, m), 3.27-3.20 (2H, m), 3.02-2.92 (2H, m), 1.44 (6H, d, J=6.6 Hz)

Workup

  1. filtrationThe reaction mixture was filtered
  2. concentrationthe filtrate concentrated in vacuo
  3. washphase preparative HPLC (C18, eluting with 10-90% acetonitrile in H2O, 0.1% formic acid, 25 min gradient)

Sources & evidence

ORD record
ord-a79d76a480be4b1fa4b8fb60e41b6fb8
Source dataset
uspto-grants-2013_01
Patent number
US08343955B2

Reaction notes

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