Formic Acid → HCID 45380996, compound

HRID 2365773Notes

Reaction equation

HRID 2365773 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C@H:18]3[CH2:22][CH2:21][N:20]([C:23](OC(C)(C)C)=[O:24])[CH2:19]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([NH2:17])=[CH:13][CH:12]=3)[C:3]=12.[F:30][C:31]([F:42])([F:41])[C:32]1[CH:33]=[C:34]([N:38]=[C:39]=[O:40])[CH:35]=[CH:36][CH:37]=1.C(O)=O.Cl>C(Cl)Cl>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([C@H:18]3[CH2:22][CH2:21][N:20]([C:23]([NH:38][C:34]4[CH:35]=[CH:36][CH:37]=[C:32]([C:31]([F:30])([F:41])[F:42])[CH:33]=4)=[O:24])[CH2:19]3)[N:9]=[C:10]([C:11]3[CH:16]=[CH:15][C:14]([NH:17][C:39]([NH:38][C:34]4[CH:35]=[CH:36][CH:37]=[C:32]([C:31]([F:41])([F:42])[F:30])[CH:33]=4)=[O:40])=[CH:13][CH:12]=3)[C:3]=12

Participants

6

Reactant 4

HCID 284Formic AcidHCID 313Hydrochloric AcidHCID 94833-(Trifluoromethyl)phenyl isocyanateHCID 58506753HCID 58506753, compound

Product 1

HCID 45380996HCID 45380996, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of (S)-tert-butyl 3-(4-amino-3-(4-aminophenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidine-1-carboxylate (0.080 g, 0.17 mmol) in CH2Cl2 (10 mL) was cooled in an ice-water bath. To this, 3-(trifluoromethyl)phenyl isocyanate (0.026 mL, 0.19 mmol) diluted in CH2Cl2 (5 mL) was added dropwise. The reaction was allowed to warm to room temperature and left stirring for 6 hours. After, formic acid (5 mL) and concentrated HCl (0.5 mL) were added dropwise directly to the reaction mixture. Three major species were observed by LC-MS corresponding to AD71a, AD71b, and AD71c. The reaction mixture was left stirring for 12 hours and then was concentrated in vacuo, resuspended in 50:50 H2O—CH3CN, and purified on a C18 column in CH3CN/H2O/0.1% TFA (1-100% gradient) to afford AD71a (ESI-MS m/z [M+H]+ found 483.5, calculated 483.2), AD71b (ESI-MS m/z [M+H]+ found 483.5, calculated 483.2), and AD71c (ESI-MS m/z [M+H]+ found 670.5, calculated 670.2).

Workup

  1. additionwas added dropwise
  2. waitleft
  3. waitThe reaction mixture was left
  4. stirringstirring for 12 hours
  5. concentrationwas concentrated in vacuo
  6. custompurified on a C18 column in CH3CN/H2O/0.1% TFA (1-100% gradient)
  7. customto afford AD71a (ESI-MS m/z [M+H]+ found 483.5, calculated 483.2), AD71b (ESI-MS m/z [M+H]+ found 483.5, calculated 483.2), and AD71c (ESI-MS m/z [M+H]+ found 670.5, calculated 670.2)

Sources & evidence

ORD record
ord-69b9b39afdd94700a877c522ad461500
Source dataset
uspto-grants-2014_04
Patent number
US08697709B2

Reaction notes

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