Cyclopropanecarbonyl chloride → N-[3-({7-cyano-2-[(cyclopropylcarbonyl)amino]-1,3-benzothiazol-6-yl}oxy)phenyl]-3-(1-cyano-1-methylethyl)benzamide

HRID 1097444Notes

Reaction equation

HRID 1097444 reaction equation
[NH2:1][C:2]1[S:3][C:4]2[C:10]([C:11]#[N:12])=[C:9]([O:13][C:14]3[CH:15]=[C:16]([NH:20][C:21](=[O:33])[C:22]4[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([C:31]#[N:32])([CH3:30])[CH3:29])[CH:23]=4)[CH:17]=[CH:18][CH:19]=3)[CH:8]=[CH:7][C:5]=2[N:6]=1.[CH:34]1([C:37](Cl)=[O:38])[CH2:36][CH2:35]1>N1C=CC=CC=1>[C:11]([C:10]1[C:4]2[S:3][C:2]([NH:1][C:37]([CH:34]3[CH2:36][CH2:35]3)=[O:38])=[N:6][C:5]=2[CH:7]=[CH:8][C:9]=1[O:13][C:14]1[CH:15]=[C:16]([NH:20][C:21](=[O:33])[C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([C:31]#[N:32])([CH3:30])[CH3:29])[CH:23]=2)[CH:17]=[CH:18][CH:19]=1)#[N:12]

Participants

4

Reactant 2

HCID 77637Cyclopropanecarbonyl chlorideHCID 86644680N-{3-[(2-amino-7-cyano-1,3-benzothiazol-6-yl)oxy]phenyl}-3-(1-cyano-1-methylethyl)benzamide

Product 1

HCID 59454483N-[3-({7-cyano-2-[(cyclopropylcarbonyl)amino]-1,3-benzothiazol-6-yl}oxy)phenyl]-3-(1-cyano-1-methylethyl)benzamideYield 69.1%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To a solution of N-{3-[(2-amino-7-cyano-1,3-benzothiazol-6-yl)oxy]phenyl}-3-(1-cyano-1-methylethyl)benzamide (150 mg, 0.33 mmol) in pyridine (2 mL) was added cyclopropanecarbonyl chloride (59 μL, 0.66 mmol), and the mixture was stirred at room temperature for 2 hr. The reaction mixture was concentrated under reduced pressure. The residue was suspended in ethyl acetate (50 mL), washed with 5% aqueous sodium hydrogen carbonate solution (50 mL) and saturated brine (50 mL), successively, and dried over anhydrous sodium sulfate. Insoluble material was filtered off, and the filtrate was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate/n-hexane=30/70→100/0), and the obtained solution was concentrated under reduced pressure. The residue was crystallized from ethyl acetate to give the title compound (119 mg, 69%) as a white powder.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. washwashed with 5% aqueous sodium hydrogen carbonate solution (50 mL) and saturated brine (50 mL)
  3. dry with materialsuccessively, and dried over anhydrous sodium sulfate
  4. filtrationInsoluble material was filtered off
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (ethyl acetate/n-hexane=30/70→100/0)
  7. concentrationthe obtained solution was concentrated under reduced pressure
  8. customThe residue was crystallized from ethyl acetate

Sources & evidence

ORD record
ord-32d1c0c5de2a486a8f190aa52ad90920
Source dataset
uspto-grants-2012_03
Patent number
US08143258B2

Reaction notes

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