Cesium carbonate → 4-(1-((2-(2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-9-methyl-6-morpholino-9H-purin-8-yl)methyl)azetidin-3-yl)morpholine

HRID 1923244

Reaction equation

HRID 1923244 reaction equation
Cl[C:2]1[N:10]=[C:9]2[C:5]([N:6]=[C:7]([CH2:12][N:13]3[CH2:16][CH:15]([N:17]4[CH2:22][CH2:21][O:20][CH2:19][CH2:18]4)[CH2:14]3)[N:8]2[CH3:11])=[C:4]([N:23]2[CH2:28][CH2:27][O:26][CH2:25][CH2:24]2)[N:3]=1.[CH:29]1([C:32]2[NH:33][C:34]3[CH:40]=[CH:39][CH:38]=[CH:37][C:35]=3[N:36]=2)[CH2:31][CH2:30]1.CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH:29]1([C:32]2[N:33]([C:2]3[N:10]=[C:9]4[C:5]([N:6]=[C:7]([CH2:12][N:13]5[CH2:14][CH:15]([N:17]6[CH2:22][CH2:21][O:20][CH2:19][CH2:18]6)[CH2:16]5)[N:8]4[CH3:11])=[C:4]([N:23]4[CH2:24][CH2:25][O:26][CH2:27][CH2:28]4)[N:3]=3)[C:34]3[CH:40]=[CH:39][CH:38]=[CH:37][C:35]=3[N:36]=2)[CH2:31][CH2:30]1

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 10844192-cyclopropyl-1H-1,3-benzodiazoleHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 596058532-Chloro-9-methyl-6-morpholin-4-yl-8-(3-morpholin-4-ylazetidin-1-ylmethyl)-9H-purine

Product 1

HCID 596061354-(1-((2-(2-cyclopropyl-1H-benzo[d]imidazol-1-yl)-9-methyl-6-morpholino-9H-purin-8-yl)methyl)azetidin-3-yl)morpholineYield 87%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
145 °C

Procedure

A mixture of 2-chloro-9-methyl-6-morpholin-4-yl-8-(3-morpholin-4-yl-azetidin-1-ylmethyl)-9H-purine (83 mg, 0.20 mmol), 2-cyclopropylbenzimidazole (39 mg, 0.24 mmol), tris(dibenzylideneacetone)dipalladium (9 mg, 0.01 mmol), Xphos (19 mg, 0.04 mmol) and Cs2CO3 (133 mg, 0.41 mmol) in dioxane (2 mL) was purged with argon then heated at 145° C. for 30 min in a microwave reactor. The reaction mixture was filtered through a pad of celite, washing with EtOAc. The filtrate was concentrated in vacuo and purified by column chromatography (Si—PCC, MeOH:DCM, 0-20%) affording 548 as a beige foam (92 mg, 87%). LCMS (Method I): RT 2.52 min, [M+H]+ 530.3. 1H NMR (CDCl3, 400 MHz): δ 7.95-7.91 (m, 1 H); 7.69-7.65 (m, 1 H); 7.27-7.18 (m, 2 H); 4.36 (m, 4 H); 3.93 (s, 2 H); 3.89-3.83 (m, 7 H); 3.75 (m, 4 H); 3.65 (m, 2 H); 3.24 (m, 2 H); 3.13 (m, 1 H); 2.89-2.81 (m, 1 H); 2.39 (m, 4 H); 1.37-1.32 (m, 2 H) and 1.08-1.02 (m, 2 H)

Workup

  1. customwas purged with argon
  2. filtrationThe reaction mixture was filtered through a pad of celite
  3. washwashing with EtOAc
  4. concentrationThe filtrate was concentrated in vacuo
  5. custompurified by column chromatography (Si—PCC, MeOH:DCM, 0-20%)

Sources & evidence

ORD record
ord-6a6ffc846332412f98dfc4bcd8e70e1a
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Linked notes

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