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1,4-Dioxane → tert-butyl 3-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydroimidazo[1,2-d]pyrido[4,3-f][1,4]oxazepin-10-ylamino)azetidine-1-carboxylate

HRID 886267
Notes
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Reaction equation

HRID 886267 reaction equation
Cl[C:2]1[N:12]=[CH:11][C:10]2[O:9][CH2:8][CH2:7][N:6]3[CH:13]=[C:14]([C:16]4[N:20]([CH:21]([CH3:23])[CH3:22])[N:19]=[CH:18][N:17]=4)[N:15]=[C:5]3[C:4]=2[CH:3]=1.[NH2:24][CH:25]1[CH2:28][N:27]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:26]1.CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C.CC(C)([O-])C.[Na+].O1CCOCC1>C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH:21]([N:20]1[C:16]([C:14]2[N:15]=[C:5]3[C:4]4[CH:3]=[C:2]([NH:24][CH:25]5[CH2:26][N:27]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:28]5)[N:12]=[CH:11][C:10]=4[O:9][CH2:8][CH2:7][N:6]3[CH:13]=2)=[N:17][CH:18]=[N:19]1)([CH3:23])[CH3:22]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 5

HCID 312751,4-DioxaneHCID 1516507Tert-butyl 3-aminoazetidine-1-carboxylateHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 23676156Sodium t-butoxideHCID 5820431910-chloro-2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydroimidazo[1,2-d]pyrido[4,3-f][1,4]oxazepine

Product 1

HCID 67050693
tert-butyl 3-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydroimidazo[1,2-d]pyrido[4,3-f][1,4]oxazepin-10-ylamino)azetidine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 167845palladium(II) acetateCatalyst

Procedure

A solution of 10-chloro-2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydroimidazo[1,2-d]pyrido[4,3-f][1,4]oxazepine (90.0 mg, 0.272 mmol), tert-butyl 3-aminoazetidine-1-carboxylate (46.9 mg, 0.272 mmol), Palladium Acetate (6.11 mg, 0.0272 mmol), XPhos (13.0 mg, 0.0272 mmol), and Sodium-tert-butoxide (52.3 mg, 0.544 mmol) in 1,4-Dioxane (1.50 mL, 19.2 mmol) was heated in microwave at 115 C for 20 min. The reaction was filtered thru celite then rinsed with EtOAc. The filtrate was washed with water and brine. The organic layer was dried Na2SO4, concentrated to give crude intermediate tert-butyl 3-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydroimidazo[1,2-d]pyrido[4,3-f][1,4]oxazepin-10-ylamino)azetidine-1-carboxylate which was dissolved in DCM (10.0 mL). Trifluoroacetic Acid (0.419 mL, 5.44 mmol) was added and the reaction was stirred 3 h. The reaction was concentrated and submitted rHPLC purification to give 261. MS: (ESI+)=367.2. 1H NMR (500 MHz, DMSO) δ 8.29 (s, 1H), 8.23 (s, 1H), 7.98 (s, 1H), 7.79 (s, 1H), 5.74 (dt, J=13.1, 6.5 Hz, 2H), 4.73-4.60 (m, 3H), 4.58-4.51 (m, 2H), 4.43 (dd, J=12.7, 6.9 Hz, 2H), 4.24 (dt, J=15.9, 5.6 Hz, 1H), 2.77 (m, J=34.8, 13.1, 5.3 Hz, 2H), 1.50 (d, J=6.6, 2.9 Hz, 6H)

Workup

  1. filtrationThe reaction was filtered thru celite
  2. washthen rinsed with EtOAc
  3. washThe filtrate was washed with water and brine
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-bbdcf80043eb47588c9468f6984d1372
Source dataset
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08242104B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes