Acetyl chloride → 7-(4-chlorobenzyl)-1-(2-hydroxyethyl)-3-methyl-8-(3-(3-(trifluoromethoxy)phenoxy)propoxy)1H-purine-2,6(3H,7H)-dione

HRID 2200668Notes

Reaction equation

HRID 2200668 reaction equation
[Cl:1][C:2]1[CH:45]=[CH:44][C:5]([CH2:6][N:7]2[C:15]3[C:14](=[O:16])[N:13]([CH2:17][CH2:18][O:19]C4CCCCO4)[C:12](=[O:26])[N:11]([CH3:27])[C:10]=3[N:9]=[C:8]2[O:28][CH2:29][CH2:30][CH2:31][O:32][C:33]2[CH:38]=[CH:37][CH:36]=[C:35]([O:39][C:40]([F:43])([F:42])[F:41])[CH:34]=2)=[CH:4][CH:3]=1.C(Cl)(=O)C>C(O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][N:7]2[C:15]3[C:14](=[O:16])[N:13]([CH2:17][CH2:18][OH:19])[C:12](=[O:26])[N:11]([CH3:27])[C:10]=3[N:9]=[C:8]2[O:28][CH2:29][CH2:30][CH2:31][O:32][C:33]2[CH:38]=[CH:37][CH:36]=[C:35]([O:39][C:40]([F:43])([F:41])[F:42])[CH:34]=2)=[CH:44][CH:45]=1

Participants

4

Reactant 2

HCID 6367Acetyl chlorideHCID 904033007-(4-chlorobenzyl)-3-methyl-1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-8-(3-(3-(trifluoromethoxy)phenoxy)propoxy)-1H-purine-2,6(3H,7H)-dione

Product 1

HCID 904028047-(4-chlorobenzyl)-1-(2-hydroxyethyl)-3-methyl-8-(3-(3-(trifluoromethoxy)phenoxy)propoxy)1H-purine-2,6(3H,7H)-dioneYield 39.2%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 7-(4-chlorobenzyl)-3-methyl-1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-8-(3-(3-(trifluoromethoxy)phenoxy)propoxy)-1H-purine-2,6(3H,7H)-dione (50 mg, 0.09 mmol,) in ethanol (5 mL) was added acetyl chloride (0.2 mL) at 0° C. The mixture was stirred at room temperature for 1 h; then it was partitioned between ethyl acetate and water. The organic phase was separated and dried over sodium sulfate. This organic layer was then filtered and concentrated to give a crude product which was purified by preparative HPLC to give 7-(4-chlorobenzyl)-1-(2-hydroxyethyl)-3-methyl-8-(3-(3-(trifluoromethoxy)phenoxy)propoxy)1H-purine-2,6(3H,7H)-dione (20 mg, 39.2% yield) as a white solid. 1H-NMR (DMSO-d6) δ 7.40(t, 1H), 7.28-7.33(m, 4H), 6.92(dd, 2H), 6.85(s, 1H), 5.23(s, 2H), 4.76(t, 1H), 4.62(t, 2H), 4.08(t, 2H), 3.93(t, 2H), 3.49(q, 2H), 3.33(s, 3H), 2.18-2.24(m, 2H). LCMS retention time 3.058 min; LCMS MH+ 569.

Workup

  1. customthen it was partitioned between ethyl acetate and water
  2. customThe organic phase was separated
  3. dry with materialdried over sodium sulfate
  4. filtrationThis organic layer was then filtered
  5. concentrationconcentrated
  6. customto give a crude product which
  7. customwas purified by preparative HPLC

Sources & evidence

ORD record
ord-6687814ef5da4afa8ac98ae5dfa5b6dd
Source dataset
uspto-grants-2016_06
Patent number
US09359359B2

Reaction notes

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