Diisopropylethylamine → 1-[4-(3,3-Dimethyl-butyl)-piperazin-1-yl]-5-[2-methyl-4-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulene-9-carbonyl)-phenyl]-pentan-1-one

HRID 220929Notes

Reaction equation

HRID 220929 reaction equation
CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:25][C:26]1[CH:31]=[C:30]([C:32]([N:34]2[CH2:43][C:42]3[CH:41]=[N:40][N:39]([CH3:44])[C:38]=3[NH:37][C:36]3[CH:45]=[CH:46][CH:47]=[CH:48][C:35]2=3)=[O:33])[CH:29]=[CH:28][C:27]=1[CH2:49][CH2:50][CH2:51][CH2:52][C:53]([OH:55])=O.Cl.Cl.[CH3:58][C:59]([CH3:69])([CH3:68])[CH2:60][CH2:61][N:62]1[CH2:67][CH2:66][NH:65][CH2:64][CH2:63]1.CCN(C(C)C)C(C)C>CN(C=O)C>[CH3:58][C:59]([CH3:69])([CH3:68])[CH2:60][CH2:61][N:62]1[CH2:63][CH2:64][N:65]([C:53](=[O:55])[CH2:52][CH2:51][CH2:50][CH2:49][C:27]2[CH:28]=[CH:29][C:30]([C:32]([N:34]3[CH2:43][C:42]4[CH:41]=[N:40][N:39]([CH3:44])[C:38]=4[NH:37][C:36]4[CH:45]=[CH:46][CH:47]=[CH:48][C:35]3=4)=[O:33])=[CH:31][C:26]=2[CH3:25])[CH2:66][CH2:67]1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 670538001-(3,3-Dimethyl-butyl)-piperazine dihydrochlorideHCID 1361284265-[2-Methyl-4-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulene-9-carbonyl)-phenyl]-pentanoic Acid

Product 1

HCID 1357360471-[4-(3,3-Dimethyl-butyl)-piperazin-1-yl]-5-[2-methyl-4-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulene-9-carbonyl)-phenyl]-pentan-1-oneYield 62%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

HBTU (104 mg, 0.27 mmol) was added to a solution of 5-[2-methyl-4-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulene-9-carbonyl)-phenyl]-pentanoic acid from E83.2 (105 mg, 0.25 mmol) and 1-(3,3-dimethyl-butyl)-piperazine dihydrochloride from Example E4 (69 mg, 0.28 mmol) in DMF (10 ml) and DIEA (0.2 ml, 1.15 mmol). The mixture was stirred for 24 h at room temperature then concentrated in vacuo. The residue was dissolved in di-chloromethane, washed with saturated NaHCO3 then brine, dried and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 4% methanol:96% dichloromethane to 8% methanol:92% di-chloromethane) to give a white solid identified as the title compound (88 mg, 62%).

Workup

  1. concentrationthen concentrated in vacuo
  2. dissolutionThe residue was dissolved in di-chloromethane
  3. washwashed with saturated NaHCO3
  4. dry with materialbrine, dried
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash chromatography on silica gel (eluant; 4% methanol:96% dichloromethane to 8% methanol:92% di-chloromethane)
  7. customto give a white solid

Sources & evidence

ORD record
ord-1225f1348d7846138c3d83d29e595e33
Source dataset
uspto-grants-2012_06
Patent number
US08202858B2

Reaction notes

Loading…