Methylamine → HCID 67217877, compound

HRID 44115Notes

Reaction equation

HRID 44115 reaction equation
[CH2:1]([O:8][C:9]1[C:14]([N:15]([CH2:20][CH3:21])[S:16]([CH3:19])(=[O:18])=[O:17])=[CH:13][N:12]2[N:22]=[C:23]([C:28]3[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=3)[C:24]([C:25](O)=[O:26])=[C:11]2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C[CH2:36][N:37]=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.CN>ClCCl.O>[CH2:1]([O:8][C:9]1[C:14]([N:15]([CH2:20][CH3:21])[S:16]([CH3:19])(=[O:18])=[O:17])=[CH:13][N:12]2[N:22]=[C:23]([C:28]3[CH:29]=[CH:30][C:31]([F:34])=[CH:32][CH:33]=3)[C:24]([C:25]([NH:37][CH3:36])=[O:26])=[C:11]2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

8

Procedure

5-(Benzyloxy)-6-(N-ethylmethylsulfonamido)-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylic acid (0.11 g, 0.22 mmol, 1 eq), EDCI.HCl (0.048 g, 0.25 mmol, 1.1 eq), HOBT (0.036 g, 0.27 mmol, 1.2 eq), DIPEA (0.12 ml, 0.68 mmol, 3 eq) were dissolved in dichloromethane and the reaction was stirred at room temperature for 10 minutes. Then Methylamine (1M in THF, 0.6 ml, 5 eq) was added to the above solution and the reaction was stirred at room temperature for 14 h. Finally, the mixture was diluted with water and the product was extracted with dichloromethane. The organic layer was washed with water, dried and concentrated. Yield: 0.1 g (90%). 1HNMR (400 MHz, DMSO-d6): δ 1.06 (t, J=7.12 Hz, 3H), 2.77 (s, 3H), 3.00 (s, 3H), 3.62 (br m, 2H), 5.30 (s, 2H), 7.30-7.32 (m, 3H), 7.33 (d, J=5.8 Hz, 1H), 7.40-7.43 (m, 2H), 7.53-7.55 (m, 2H), 7.81 (t, J=3.52 Hz, 1H), 7.95 (s, 2H), 8.88 (s, 1H). LCMS: (ES+) m/z=497.0 (M+H).

Workup

  1. stirringthe reaction was stirred at room temperature for 14 h
  2. extractionthe product was extracted with dichloromethane
  3. washThe organic layer was washed with water
  4. customdried
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-dbde6cc3a6f34ea98e870f0e18f9a217
Source dataset
uspto-grants-2013_09
Patent number
US08536338B2

Reaction notes

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