Triethylamine → 1-methyl-piperidine-4-carboxylic acid (1-{3-[5-carbamoyl-4-(3-chloro-phenyl)-thiazol-2-yl]-3H-benzoimidazol-5-ylmethyl}-piperidin-4-yl)-amide

HRID 1667706Notes

Reaction equation

HRID 1667706 reaction equation
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][C:9]2[CH:10]=[CH:11][C:12]3[N:16]=[CH:15][N:14]([C:17]4[S:18][C:19]([C:29]([NH2:31])=[O:30])=[C:20]([C:22]5[CH:27]=[CH:26][CH:25]=[C:24]([Cl:28])[CH:23]=5)[N:21]=4)[C:13]=3[CH:32]=2)[CH2:4][CH2:3]1.CN(C(N(C)C)=[N+]1C2C(=NC=CC=2)N=N1)C.F[P-](F)(F)(F)(F)F.[CH2:56]([N:58]([CH2:61][CH3:62])[CH2:59][CH3:60])C.[C:63]([O:67]C(NC(C)(C)C(O)=O)=O)(C)(C)[CH3:64]>C(OCC)(=O)C.CN(C)C=O>[C:29]([C:19]1[S:18][C:17]([N:14]2[C:13]3[CH:32]=[C:9]([CH2:8][N:5]4[CH2:4][CH2:3][CH:2]([NH:1][C:63]([CH:64]5[CH2:62][CH2:61][N:58]([CH3:56])[CH2:59][CH2:60]5)=[O:67])[CH2:7][CH2:6]4)[CH:10]=[CH:11][C:12]=3[N:16]=[CH:15]2)=[N:21][C:20]=1[C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([Cl:28])[CH:23]=1)(=[O:30])[NH2:31]

Participants

8

Reactant 5

HCID 8471TriethylamineHCID 9886HexafluorophosphateHCID 2733845N-((1,1-dimethylethoxy)carbonyl)-2-methyl-alanineHCID 468305822-[6-(4-Amino-piperidin-1-ylmethyl)-benzoimidazol-1-yl]-4-(3-chloro-phenyl)-thiazole-5-carboxylic acid amideHCID 178484285HCID 178484285, compound

Product 1

HCID 468305831-methyl-piperidine-4-carboxylic acid (1-{3-[5-carbamoyl-4-(3-chloro-phenyl)-thiazol-2-yl]-3H-benzoimidazol-5-ylmethyl}-piperidin-4-yl)-amideYield 54.8%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 0.360 g (0.77 mmole) of 2-[6-(4-amino-piperidin-1-ylmethyl)-benzoimidazol-1-yl]-4-(3-chloro-phenyl)-thiazole-5-carboxylic acid amide (I.13), 5 mL of dimethylformamide, 0.441 g (1.16 mmole) of 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium, 3-oxide, hexafluorophosphate(1-) (1:1), 0.311 g (3.08 mmole) of triethylamine was stirred for 15 minutes, then 0.236 g (1.16 mmole) of 2-tert-butoxycarbonylamino-2-methyl-propionic acid was added. After 3 hours, the mixture was taken up in 100 mL of ethyl acetate, washed twice with 100 mL of water, and then once with 100 mL of brine. The ethyl acetate layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography, eluting with dichloromethane-(methanol-ammonium hydroxide, (92.8:0.3)) (gradient 100:0-0:100) to give 0.250 g of 1-methyl-piperidine-4-carboxylic acid (1-{3-[5-carbamoyl-4-(3-chloro-phenyl)-thiazol-2-yl]-3H-benzoimidazol-5-ylmethyl}-piperidin-4-yl)-amide (I.15) as an off white solid. MH+/Z=652

Workup

  1. waitAfter 3 hours
  2. washwashed twice with 100 mL of water
  3. dry with materialThe ethyl acetate layer was dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel chromatography
  7. washeluting with dichloromethane-(methanol-ammonium hydroxide, (92.8:0.3)) (gradient 100:0-0:100)

Sources & evidence

ORD record
ord-58d83eb09879481293879e1ef03b1071
Source dataset
uspto-grants-2011_10
Patent number
US08044213B2

Reaction notes

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