Ammonium Chloride → HCID 57619414, compound

HRID 1024268Notes

Reaction equation

HRID 1024268 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([O:19][CH3:20])[CH:18]=[C:13]3[C:12](I)=[CH:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C([Mg]Cl)(C)C.[C:27]([O:31][C:32](=[O:54])[N:33]([C:45]1[CH:50]=[CH:49][C:48]([CH:51]=[O:52])=[C:47]([F:53])[N:46]=1)[CH2:34][C:35]1[CH:36]=[N:37][C:38]([C:41]([F:44])([F:43])[F:42])=[CH:39][CH:40]=1)([CH3:30])([CH3:29])[CH3:28].[Cl-].[NH4+]>O1CCCC1>[C:27]([O:31][C:32](=[O:54])[N:33]([C:45]1[CH:50]=[CH:49][C:48]([CH:51]([C:12]2[C:13]3[C:14](=[N:15][CH:16]=[C:17]([O:19][CH3:20])[CH:18]=3)[N:10]([S:7]([C:1]3[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=3)(=[O:9])=[O:8])[CH:11]=2)[OH:52])=[C:47]([F:53])[N:46]=1)[CH2:34][C:35]1[CH:36]=[N:37][C:38]([C:41]([F:43])([F:42])[F:44])=[CH:39][CH:40]=1)([CH3:30])([CH3:28])[CH3:29]

Participants

6

Reactant 4

HCID 25517Ammonium ChlorideHCID 57619268HCID 57619268, compoundHCID 591287071-(Benzenesulfonyl)-3-iodo-5-methoxy-1H-pyrrolo[2,3-b]pyridineHCID 178418918HCID 178418918, compound

Product 1

HCID 57619414HCID 57619414, compoundYield 60%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
-25 °C

Procedure

To 1-benzenesulfonyl-3-iodo-5-methoxy-1H-pyrrolo[2,3-b]pyridine (575, 0.326 g, 0.000788 mol) in tetrahydrofuran (3.00 mL) at −45° C. under nitrogen, isopropylmagnesium chloride (2.0M in tetrahydrofuran, 0.380 mL) was added slowly. The reaction was allowed to warm to −25° C. in 30 minutes, and then cooled to −45° C. followed by adding (6-fluoro-5-formyl-pyridin-2-yl)-(6-trifluoromethyl-pyridin-3-ylmethyl)-carbamic acid tert-butyl ester (565, 80.0 mg, 0.20 mmol, prepared as described in Example 60, Scheme 176) in tetrahydrofuran (1.0 mL). The reaction was allowed to warm to room temperature over 2 hours. The reaction was poured into aqueous ammonium chloride, and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated and purified by silica gel column chromatography eluting with 20% to 100% ethyl acetate in hexane to give the desired compound (576, 0.080 g, 60%). MS (ESI) [M+H+]+=688.1.

Workup

  1. temperaturecooled to −45° C.
  2. temperatureto warm to room temperature over 2 hours
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated
  7. custompurified by silica gel column chromatography
  8. washeluting with 20% to 100% ethyl acetate in hexane

Sources & evidence

ORD record
ord-272eb116e47d41cb99dd514d5c5223fe
Source dataset
uspto-grants-2014_05
Patent number
US08722702B2

Reaction notes

Loading…