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Potassium Phosphate, Tribasic → 2-(5-(6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl Acetate

HRID 1918886
Notes
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Reaction equation

HRID 1918886 reaction equation
Cl[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:19]=[C:14]3[CH2:15][O:16][CH2:17][CH2:18][N:13]3[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[N:7]=1.[C:20]([O:23][CH2:24][C:25]1[C:30](B2OC(C)(C)C(C)(C)O2)=[CH:29][CH:28]=[CH:27][C:26]=1[N:40]1[CH2:52][CH2:51][N:43]2[C:44]3[CH2:45][CH2:46][CH2:47][CH2:48][C:49]=3[CH:50]=[C:42]2[C:41]1=[O:53])(=[O:22])[CH3:21].[O-]P([O-])([O-])=O.[K+].[K+].[K+].CC([O-])=O.[Na+]>CC#N.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[C:20]([O:23][CH2:24][C:25]1[C:26]([N:40]2[CH2:52][CH2:51][N:43]3[C:44]4[CH2:45][CH2:46][CH2:47][CH2:48][C:49]=4[CH:50]=[C:42]3[C:41]2=[O:53])=[CH:27][CH:28]=[CH:29][C:30]=1[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:19]=[C:14]3[CH2:15][O:16][CH2:17][CH2:18][N:13]3[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[N:7]=1)(=[O:22])[CH3:21]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 517045Sodium AcetateHCID 580437886-Chloro-4-(6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-2-methylpyridazin-3(2H)-oneHCID 580438772-(2-(Acetoxymethyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one

Product 1

HCID 58043688
2-(5-(6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl Acetate
Yield 33%

Reagents, catalysts & solvents 3

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
110 °C

Procedure

A mixture of 6-chloro-4-(6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-2-ylamino)-2-methylpyridazin-3(2H)-one 147a (400 mg, 1.42 mmol), 2-(1-oxo-3,4,6,7,8,9-hexa-hydropyrazino[1,2-a]indol-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-benzyl acetate 114a (660 mg, 1.42 mmol), PdCl2(dppf) (155 mg, 0.21 mmol), K3PO4 (150 mg), and NaOAc (50 mg) in MeCN (20 mL) and H2O (4 mL) was heated at 110° C. in sealed tube for 2 h. The solvent was evaporated in vacuo and the residue was purified on reverse phase Combi-flash to give 147b (273 mg, 33%). MS: [M+H]+ 584.

Workup

  1. customThe solvent was evaporated in vacuo
  2. customthe residue was purified on reverse phase Combi-flash

Sources & evidence

ORD record
ord-15905f653964484f8d72f45926f7487f
Source dataset
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08618107B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes