Cesium carbonate → HCID 11627094, compound

HRID 1173532Notes

Reaction equation

HRID 1173532 reaction equation
[F:1][C:2]1[N:10]=[C:9]2[C:5]([NH:6][C:7]([CH2:11][C:12]3[C:20]([I:21])=[CH:19][C:15]4[O:16][CH2:17][O:18][C:14]=4[CH:13]=3)=[N:8]2)=[C:4]([NH2:22])[N:3]=1.C([O-])([O-])=O.[Cs+].[Cs+].S(C1C=CC(C)=CC=1)(O[CH2:33][CH2:34][CH2:35][C:36]#[CH:37])(=O)=O>CN(C=O)C>[F:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[C:7]([CH2:11][C:12]3[C:20]([I:21])=[CH:19][C:15]4[O:16][CH2:17][O:18][C:14]=4[CH:13]=3)[N:8]2[CH2:37][CH2:36][CH2:35][C:34]#[CH:33])=[C:4]([NH2:22])[N:3]=1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 10966564pent-4-ynyl tosylateHCID 11596767HCID 11596767, compound

Product 1

HCID 11627094HCID 11627094, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 2-Fluoro-8-(6-iodo-benzo[1,3]dioxol-5-ylmethyl)adenine (6 mg, 0.0145 mmol), Cs2CO3 (5 mg, 0.0145 mmol) and pent-4-ynyl tosylate (4.5 mg, 0.189 mmol) in anhydrous DMF (200 L) was stirred at 60° C. for 1.5 h. Following solvent removal, product (5.9 mg, 84.9%) was collected through silica gel column purification (EtOAc:hexanes:CHCl3:i-PrOH at 10:20:20:1). 1H NMR (400 MHz, CDCl3) 7.29 (s, 1H), 6.59 (s, 1H), 5.94 (s, 2H), 5.83 (bs, 2H), 4.26 (s, 2H), 4.11 (t, J=7.4 Hz, 2H), 2.26-2.19 (m, 2H), 2.00 (t, J=2.5 Hz, 1H), 1.98-1.94 (m, 2H); 13C NMR (100 MHz, CDCl3) 150.9, 148.9, 147.8, 131.5, 118.8, 109.4, 101.9, 88.1, 82.3, 69.9, 42.3, 39.2, 28.2, 15.9; MS m/z 480.0 (M+H)+. HPLC: (a) 95.5% (60% water-40% acetonitrile); (b) 95.0% (35% to 55% acetonitrile).

Workup

  1. customFollowing solvent removal, product (5.9 mg, 84.9%)
  2. customwas collected through silica gel column purification (EtOAc:hexanes:CHCl3:i-PrOH at 10:20:20:1)

Sources & evidence

ORD record
ord-e156a226bde942f0b185e89ff07975ec
Source dataset
uspto-grants-2010_11
Patent number
US07834181B2

Reaction notes

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