Trifluoroacetic acid → HCID 178509204, compound

HRID 1962778Notes

Reaction equation

HRID 1962778 reaction equation
C[Si](C)(C)CCOC[N:7]1[C:11]2[N:12]=[CH:13][N:14]=[C:15]([C:16]3[CH:17]=[N:18][N:19]([C@@H:21]4[CH2:26][CH2:25][C@H:24]([CH2:27][S:28][C:29]5[NH:30][C:31]([NH2:34])=[N:32][N:33]=5)[CH2:23][CH2:22]4)[CH:20]=3)[C:10]=2[CH:9]=[CH:8]1.CC#N.O.[C:41]([OH:47])([C:43]([F:46])([F:45])[F:44])=[O:42]>>[F:44][C:43]([F:46])([F:45])[C:41]([OH:47])=[O:42].[N:12]1[C:11]2[NH:7][CH:8]=[CH:9][C:10]=2[C:15]([C:16]2[CH:17]=[N:18][N:19]([C@@H:21]3[CH2:26][CH2:25][C@H:24]([CH2:27][S:28][C:29]4[NH:30][C:31]([NH2:34])=[N:32][N:33]=4)[CH2:23][CH2:22]3)[CH:20]=2)=[N:14][CH:13]=1

Participants

4

Reactant 3

HCID 6422Trifluoroacetic acidHCID 18373917Acetonitrile--water (1/1)HCID 178504222HCID 178504222, compound

Product 1

HCID 178509204HCID 178509204, compound

Procedure

5-[(cis-4-[4-(7-[2-(Trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclohexylmethyl)thio]-4H-1,2,4-triazol-3-amine (9a) was dissolved in TFA (1 mL) and was stirred for 2 h. The solution was concentrated using a rotary evaporator to remove TFA. The residue was dissolved in methanol (1 mL) and ammonium hydroxide (1 mL) added. The solution was stirred overnight. LCMS showed complete de-protection. The solution was concentrated using a rotary evaporator. The product was isolated by prep LCMS using a 30 mm×100 mm C18 column; 11% CH3CN—H2O (0.1% TFA), 1.5 min, to 33% at 6 min; 60 mL/min; detector set at m/z 396; retention time, 5.5 min (2 runs). The eluate was freeze dried. Yield 21 mg (di-TFA salt). LC/MS (M+H)+: 396,

Workup

  1. concentrationThe solution was concentrated
  2. customa rotary evaporator
  3. customto remove TFA
  4. dissolutionThe residue was dissolved in methanol (1 mL)
  5. additionammonium hydroxide (1 mL) added
  6. stirringThe solution was stirred overnight
  7. concentrationThe solution was concentrated
  8. customa rotary evaporator
  9. customThe product was isolated by prep LCMS
  10. customretention time, 5.5 min (2 runs)
  11. customdried

Sources & evidence

ORD record
ord-2a43ea075f1745bcbabff5479ef6ae4f
Source dataset
uspto-grants-2013_04
Patent number
US08415362B2

Reaction notes

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