Triethylamine → HCID 123948016, compound

HRID 1050929Notes

Reaction equation

HRID 1050929 reaction equation
[C:1]([O:5][C:6]([N:8]([CH2:19][C:20]1[CH:25]=[CH:24][C:23]([O:26][CH2:27][CH2:28][CH2:29][OH:30])=[C:22]([Br:31])[CH:21]=1)[C:9]([NH2:18])=[N:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[O:7])([CH3:4])([CH3:3])[CH3:2].[O:32](S(C(F)(F)F)(=O)=O)[S:33]([C:36]([F:39])([F:38])[F:37])(=O)=[O:34].CCN(CC)CC>C(Cl)Cl.CN(C1C=CN=CC=1)C>[F:37][C:36]([F:39])([F:38])[S:33]([O:30][CH2:29][CH2:28][CH2:27][O:26][C:23]1[CH:24]=[CH:25][C:20]([CH2:19][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:4])[CH3:3])=[O:7])[C:9]([NH2:18])=[N:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[CH:21][C:22]=1[Br:31])(=[O:34])=[O:32]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 67749Trifluoromethanesulfonic anhydrideHCID 68213907HCID 68213907, compound

Product 1

HCID 123948016HCID 123948016, compoundYield 82.2%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of the product of Example 1A (300 mg, 0.598 mmol) dissolved in anhydrous CH2Cl2 (6.0 mL) was added Tf2O (203 mg, 0.718 mmol), DMAP (87.7 mg, 0.718 mmol) and Et3N (0.125 mL, 0.897 mmol). The reaction mixture was stirred at room temperature for 1.5 h then concentrated to yield an oil. The crude material was directly purified using silica gel chromatography (4:1 to 1:1 hexanes:EtOAc) to yield a colorless oil (312 mg, 82% yield). 1H NMR (CDCl3, 300 MHz): δ 9.39 (brs, 2H), 7.54 (d, J=3.0 Hz, 1H), 7.26 (m, 1H), 6.84 (d, J=9.0 Hz, 1H), 5.08 (brs, 2H), 4.16 (t, J=6.0 Hz, 2H), 3.81 (t, J=6.0 Hz, 2H), 2.27 (m, 2H), 1.50 (s, 9H), 1.39 (s, 9H); 13C NMR (CDCl3, 150 MHz): δ 160.7, 154.9, 154.3, 133.2, 132.8, 128.1, 113.2, 112.0, 84.7, 79.3, 65.8, 46.7, 40.7, 32.4, 28.5, 28.2; 19F NMR (CDCl3, 282 MHz): δ-75.5 (s).

Workup

  1. concentrationthen concentrated
  2. customto yield an oil
  3. customThe crude material was directly purified

Sources & evidence

ORD record
ord-ec88e0a105004855b2a209f9d46e7e61
Source dataset
uspto-grants-2016_07
Patent number
US09388125B2

Reaction notes

Loading…