Water → Tert-butyl 4-[4-[5-amino-6-[2-(3-hydroxyphenyl)ethynyl]pyrazin-2-yl]phenyl]sulfonylpiperidine-1-carboxylate

HRID 869040Notes

Reaction equation

HRID 869040 reaction equation
[NH2:1][C:2]1[C:3]([C:9]#[C:10][C:11]2[CH:12]=[C:13]([OH:17])[CH:14]=[CH:15][CH:16]=2)=[N:4][C:5](Br)=[CH:6][N:7]=1.CC1(C)C(C)(C)OB([C:26]2[CH:31]=[CH:30][C:29]([S:32]([CH:35]3[CH2:40][CH2:39][N:38]([C:41]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42])[CH2:37][CH2:36]3)(=[O:34])=[O:33])=[CH:28][CH:27]=2)O1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].O>CC#N.CCOC(C)=O.Cl.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C>[NH2:1][C:2]1[N:7]=[CH:6][C:5]([C:26]2[CH:31]=[CH:30][C:29]([S:32]([CH:35]3[CH2:36][CH2:37][N:38]([C:41]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])=[O:42])[CH2:39][CH2:40]3)(=[O:34])=[O:33])=[CH:28][CH:27]=2)=[N:4][C:3]=1[C:9]#[C:10][C:11]1[CH:16]=[CH:15][CH:14]=[C:13]([OH:17])[CH:12]=1

Participants

9

Reactant 4

HCID 962WaterHCID 62657Potassium Phosphate, TribasicHCID 67481388tert-Butyl 4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxa-borolan-2-yl)phenylsulfonyl)piperidine-1-carboxylateHCID 86667832HCID 86667832, compound

Product 1

HCID 67478804Tert-butyl 4-[4-[5-amino-6-[2-(3-hydroxyphenyl)ethynyl]pyrazin-2-yl]phenyl]sulfonylpiperidine-1-carboxylate

Reagents, catalysts & solvents 4

HCID 178418851HCID 178418851, compoundCatalystHCID 313Hydrochloric AcidSolventHCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

3-[2-(3-Amino-6-bromo-pyrazin-2-yl)ethynyl]phenol (100 mg, 0.3447 mmol), tert-butyl 4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonylpiperidine-1-carboxylate (186.7 mg, 0.4136 mmol) and K3PO4 (146.3 mg, 0.6894 mmol) were combined in MeCN (2 mL)/water (0.5 mL) and Pd[P(tBu)3]2 (8.811 mg, 0.01724 mmol) was added. The reaction was heated at 60° C. for 15 hours. The reaction was cooled to ambient temperature and diluted with EtOAc and 1M HCl. The layers were separated and the aqueous layer extracted with EtOAc (×3). The combined organic layers were dried (MgSO4), filtered and concentrated in vacuo. The material was used directly in the next step without further purification.

Workup

  1. additionwas added
  2. temperatureThe reaction was cooled to ambient temperature
  3. customThe layers were separated
  4. extractionthe aqueous layer extracted with EtOAc (×3)
  5. dry with materialThe combined organic layers were dried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe material was used directly in the next step without further purification

Sources & evidence

ORD record
ord-2f8ab5622bf0406daf579a61bcf8ebcf
Source dataset
uspto-grants-2015_03
Patent number
US08969356B2

Reaction notes

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