Ammonia → HCID 59299542, compound

HRID 1943815Notes

Reaction equation

HRID 1943815 reaction equation
[CH2:1]([N:5]1[C:13](=[O:14])[C:12]2[N:11]([CH2:15][CH:16]=[CH2:17])[C:10]([C:18](O)=[O:19])=[N:9][C:8]=2[N:7]([CH2:21][CH2:22][CH2:23][CH3:24])[C:6]1=[O:25])[CH2:2][CH2:3][CH3:4].CC[N:28](C(C)C)C(C)C.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.N>CN(C=O)C>[CH2:1]([N:5]1[C:13](=[O:14])[C:12]2[N:11]([CH2:15][CH:16]=[CH2:17])[C:10]([C:18]([NH2:28])=[O:19])=[N:9][C:8]=2[N:7]([CH2:21][CH2:22][CH2:23][CH3:24])[C:6]1=[O:25])[CH2:2][CH2:3][CH3:4]

Participants

6

Reactant 4

HCID 222AmmoniaHCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 59299595HCID 59299595, compound

Product 1

HCID 59299542HCID 59299542, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A stirred solution of 1,3-dibutyl-2,6-dioxo-7-(2-propen-1-yl)-2,3,6,7-tetrahydro-1H-purine-8-carboxylic acid (1.0 g, 2.9 mmol) in anhydrous DMF (10 ml) was sequentially treated with DIPEA (1.1 ml), PyBOP, and 2M NH3 (3.6 ml). After 2 hours the product mixture was partitioned between 2M HCl (aq) and EtOAc. The organic layer was separated, washed with sat. NaHCO3 (aq) solution, brine, then dried (MgSO4) and concentrated giving an orange oil (ca. 2 g). The product was purified by Biotage™ chromatography eluting with 5%→40% EtOAc/cyclohexane mixtures. The appropriate fractions were combined and concentrated to give the amide 90% pure (790 mg, 78%). m/z. 392.3[M+formic acid−H]−.

Workup

  1. customAfter 2 hours the product mixture was partitioned between 2M HCl (aq) and EtOAc
  2. customThe organic layer was separated
  3. washwashed with sat. NaHCO3 (aq) solution, brine
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-7ffcfdb0b83348039fa30d3945641c27
Source dataset
uspto-grants-2013_03
Patent number
US08394808B2

Reaction notes

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