Cesium carbonate → 4-(5-(2-methyl-1H-benzo[d]imidazol-1-yl)-2-((3-(1,1-dioxo-thiomorpholino)azetidin-1-yl)methyl)thiazolo[5,4-d]pyrimidin-7-yl)morpholine

HRID 1923148Notes

Reaction equation

HRID 1923148 reaction equation
Cl[C:2]1[N:3]=[C:4]([N:24]2[CH2:29][CH2:28][O:27][CH2:26][CH2:25]2)[C:5]2[N:10]=[C:9]([CH2:11][N:12]3[CH2:15][CH:14]([N:16]4[CH2:21][CH2:20][S:19](=[O:23])(=[O:22])[CH2:18][CH2:17]4)[CH2:13]3)[S:8][C:6]=2[N:7]=1.[CH3:30][C:31]1[NH:32][C:33]2[CH:39]=[CH:38][CH:37]=[CH:36][C:34]=2[N:35]=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]>[CH3:30][C:31]1[N:35]([C:2]2[N:3]=[C:4]([N:24]3[CH2:25][CH2:26][O:27][CH2:28][CH2:29]3)[C:5]3[N:10]=[C:9]([CH2:11][N:12]4[CH2:13][CH:14]([N:16]5[CH2:17][CH2:18][S:19](=[O:22])(=[O:23])[CH2:20][CH2:21]5)[CH2:15]4)[S:8][C:6]=3[N:7]=2)[C:34]2[CH:36]=[CH:37][CH:38]=[CH:39][C:33]=2[N:32]=1

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 119842-MethylbenzimidazoleHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 596058185-Chloro-2-[3-(1,1-Dioxo-1-thiomorpholin-4-yl)azetidin-1-ylmethyl]-7-morpholin-4-ylthiazolo[5,4-d]pyrimidine

Product 1

HCID 596056864-(5-(2-methyl-1H-benzo[d]imidazol-1-yl)-2-((3-(1,1-dioxo-thiomorpholino)azetidin-1-yl)methyl)thiazolo[5,4-d]pyrimidin-7-yl)morpholineYield 40.4%

Reagents, catalysts & solvents 2

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

Conditions

Temperature
145 °C

Procedure

A mixture of 5-chloro-2-[3-(1,1-dioxo-1-thiomorpholin-4-yl)azetidin-1-ylmethyl]-7-morpholin-4-ylthiazolo[5,4-d]pyrimidine (150 mg, 0.33 mmol), 2-methylbenzimidazole (52 mg, 0.39 mmol), tris(dibenzylideneacetone)dipalladium (15 mg, 0.02 mmol), Xphos (31 mg, 0.07 mmol) and Cs2CO3 (213 mg, 0.65 mmol) in dioxane (3 mL) was purged with argon then heated at 145° C. for 45 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:EtOAc, 0-5%) affording 448 as a foam (74 mg, 40%). LCMS (Method I): RT 2.45 min, [M+H]+ 555.2. 1H NMR (CDCl3, 400 MHz): δ 8.09-8.04 (m, 1 H); 7.74-7.69 (m, 1 H); 7.34-7.26 (m, 2 H); 4.41 (m, 4 H); 4.01 (s, 2 H); 3.88 (m, 4 H); 3.71 (t, J=6.7 Hz, 2 H); 3.37-3.30 (m, 1 H); 3.15 (t, J=6.7 Hz, 2 H); 3.09 (m, 4 H); 2.94 (s, 3 H) and 2.88 (m, 4 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:EtOAc, 0-5%)

Sources & evidence

ORD record
ord-774f35bb3c3d4e97a19b96635e0508c6
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Reaction notes

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