Triethylamine → 5-Methyl-2-(1-[9-(2-trimethylsilylethoxymethyl)-9H-purin-6-ylamino]ethyl)-3-(3-trimethylsilylethynyiphenyl)-3H-quinazolin-4-one

HRID 2039336Notes

Reaction equation

HRID 2039336 reaction equation
[CH3:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[C:4](=[O:46])[N:5]([C:32]1[CH:33]=[C:34](OS(C(F)(F)F)(=O)=O)[CH:35]=[CH:36][CH:37]=1)[C:6]([CH:12]([NH:14][C:15]1[N:23]=[CH:22][N:21]=[C:20]3[C:16]=1[N:17]=[CH:18][N:19]3[CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:30])[CH3:29])[CH3:13])=[N:7]2.C(N(CC)CC)C.[CH3:54][Si:55]([C:58]#[CH:59])([CH3:57])[CH3:56]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CN(C=O)C>[CH3:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[C:4](=[O:46])[N:5]([C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([C:59]#[C:58][Si:55]([CH3:57])([CH3:56])[CH3:54])[CH:33]=1)[C:6]([CH:12]([NH:14][C:15]1[N:23]=[CH:22][N:21]=[C:20]3[C:16]=1[N:17]=[CH:18][N:19]3[CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:29])([CH3:31])[CH3:30])[CH3:13])=[N:7]2

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 66111TrimethylsilylacetyleneHCID 86624483Trifluoromethane sulfonic acid 3-(5-methyl-4-oxo-2-(1-[9-(2-trimethylsilanyl-ethoxymethyl)-9H-purin-6-ylamino]-ethyl)-4H-quinazolin-3-yl)-phenyl ester

Product 1

HCID 671035585-Methyl-2-(1-[9-(2-trimethylsilylethoxymethyl)-9H-purin-6-ylamino]ethyl)-3-(3-trimethylsilylethynyiphenyl)-3H-quinazolin-4-oneYield 63%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

A 5-mL reaction vial equipped with a magnetic stirrer was purged with nitrogen and charged with compound 138 (220 mg, 0.33 mmol), dichlorobis(triphenylphosphine)palladium(II) (27.1 mg, 0.039 mmol), and anhydrous DMF (1 mL). Triethylamine (146 mg, 1.44 mmol) and (trimethylsilyl)acetylene (102 mg, 1.04 mmol) were added, and the reaction mixture was stirred for 10 h at 90° C. and an additional 8 h at 100° C. Evaporation of the reaction mixture to dryness followed by column chromatography purification afforded 63% yield of compound 139 as an off-white solid. 1H NMR (CD3OΔ) δ (ppm) 7.43-8.33 (m, 8H), 7.30 (d, 1H, J=6.6 Hz), 5.64 (s, 2H), 5.14 (bs, 1H), 3.68 (t, 2H, J=8.0 Hz), 2.81 (s, 3H), 1.59-1.64 (m, 3H), 0.94 (m, 2H), 0.32 (s, 9H), −0.09 (s, 9H).

Workup

  1. customA 5-mL reaction
  2. customvial equipped with a magnetic stirrer
  3. customwas purged with nitrogen
  4. customEvaporation of the reaction mixture to dryness
  5. customfollowed by column chromatography purification

Sources & evidence

ORD record
ord-56813c5f5f5a4c729b76c6f21a8011a8
Source dataset
uspto-grants-2013_11
Patent number
USRE044599E1

Reaction notes

Loading…