Cesium carbonate → 4-(1-((2-(2-Methylbenzofuran-3-yl)-4-morpholinothieno[3,2-d]pyrimidin-6-yl)methyl)azetidin-3-yl)morpholine

HRID 1922972Notes

Reaction equation

HRID 1922972 reaction equation
Cl[C:2]1[N:3]=[C:4]([N:22]2[CH2:27][CH2:26][O:25][CH2:24][CH2:23]2)[C:5]2[S:10][C:9]([CH2:11][N:12]3[CH2:15][CH:14]([N:16]4[CH2:21][CH2:20][O:19][CH2:18][CH2:17]4)[CH2:13]3)=[CH:8][C:6]=2[N:7]=1.[CH3:28][C:29]1[O:30][C:31]2[CH:46]=[CH:45][CH:44]=[CH:43][C:32]=2[C:33]=1B1OC(C)(C)C(C)(C)O1.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:28][C:29]1[O:30][C:31]2[CH:46]=[CH:45][CH:44]=[CH:43][C:32]=2[C:33]=1[C:2]1[N:3]=[C:4]([N:22]2[CH2:27][CH2:26][O:25][CH2:24][CH2:23]2)[C:5]2[S:10][C:9]([CH2:11][N:12]3[CH2:15][CH:14]([N:16]4[CH2:21][CH2:20][O:19][CH2:18][CH2:17]4)[CH2:13]3)=[CH:8][C:6]=2[N:7]=1

Participants

7

Reactant 3

HCID 10796Cesium carbonateHCID 596053422-Chloro-4-morpholin-4-yl-6-(3-morpholin-4-ylazetidin-1-ylmethyl)thieno[3,2-d]pyrimidineHCID 673417654,4,5,5-Tetramethyl-2-(2-methylbenzofuran-3-yl)-1,3,2-dioxaborolane

Product 1

HCID 498324354-(1-((2-(2-Methylbenzofuran-3-yl)-4-morpholinothieno[3,2-d]pyrimidin-6-yl)methyl)azetidin-3-yl)morpholineYield 81%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
140 °C

Procedure

A mixture of 2-chloro-4-morpholin-4-yl-6-(3-morpholin-4-ylazetidin-1-ylmethyl)thieno[3,2-d]pyrimidine (100 mg, 0.24 mmol), 2-methyl-3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzofuran (94 mg, 0.36 mmol), tetrakis(triphenylphosphine)palladium (28 mg, 0.02 mmol) and Cs2CO3 (160 mg, 0.48 mmol) in dioxane (6 mL) and H2O (3 mL) was purged with argon then heated at 140° C. for 30 min in a microwave reactor. The reaction mixture was loaded onto an Isolute® SCX-2 cartridge, washed with DCM/MeOH then eluted with 2M NH3/MeOH. The resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-5%) to afford 213 as a white foam (98 mg, 81%). LCMS (Method G): RT 9.09 min, [M+H]− 506.3. 1H NMR (CDCl3, 400 MHz): δ 8.42-8.39 (m, 1 H); 7.46-7.42 (m, 1 H); 7.32-7.24 (m, 3 H); 4.02 (t, J=4.7 Hz, 4H); 3.97 (s, 2 H); 3.89 (t, J=4.7 Hz, 4 H); 3.73 (m, 4 H); 3.63 (s, 2 H); 3.06 (m, 3 H); 2.93 (s, 3 H) and 2.33 (m, 4 H)

Workup

  1. customwas purged with argon
  2. washwashed with DCM/MeOH
  3. washthen eluted with 2M NH3/MeOH
  4. customThe resulting residue was purified by column chromatography (Si—PCC, MeOH:DCM, 0-5%)

Sources & evidence

ORD record
ord-43813dc9e45a4347b2b934213c07fd82
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Reaction notes

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