Diisopropylethylamine → tert-Butyl methyl [(3R,4S,5S)-1-(3-{[(3-{[(benzyloxy)carbonyl]amino}-7-bromoquinolin-2-yl)carbonyl]amino}pyridin-4-yl)-5-methylpiperidine-3, 4-diyl]biscarbamate

HRID 924522Notes

Reaction equation

HRID 924522 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C:12]1[C:13]([C:23]([OH:25])=O)=[N:14][C:15]2[C:20]([CH:21]=1)=[CH:19][CH:18]=[C:17]([Br:22])[CH:16]=2)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:26][C:27]1[CH:28]=[N:29][CH:30]=[CH:31][C:32]=1[N:33]1[CH2:38][C@H:37]([CH3:39])[C@H:36]([NH:40][C:41](=[O:44])[O:42][CH3:43])[C@H:35]([NH:45][C:46](=[O:52])[O:47][C:48]([CH3:51])([CH3:50])[CH3:49])[CH2:34]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[CH2:1]([O:8][C:9]([NH:11][C:12]1[C:13]([C:23]([NH:26][C:27]2[CH:28]=[N:29][CH:30]=[CH:31][C:32]=2[N:33]2[CH2:38][C@H:37]([CH3:39])[C@H:36]([NH:40][C:41](=[O:44])[O:42][CH3:43])[C@H:35]([NH:45][C:46](=[O:52])[O:47][C:48]([CH3:51])([CH3:50])[CH3:49])[CH2:34]2)=[O:25])=[N:14][C:15]2[C:20]([CH:21]=1)=[CH:19][CH:18]=[C:17]([Br:22])[CH:16]=2)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 867268583-{[(Benzyloxy)carbonyl]amino}-7-bromoquinoline-2-carboxylic acidHCID 86726962tert-butyl methyl [(3R,4S,5S)-1-(3-aminopyridin-4-yl)-5-methylpiperidine-3,4-diyl]biscarbamate

Product 1

HCID 86726961tert-Butyl methyl [(3R,4S,5S)-1-(3-{[(3-{[(benzyloxy)carbonyl]amino}-7-bromoquinolin-2-yl)carbonyl]amino}pyridin-4-yl)-5-methylpiperidine-3, 4-diyl]biscarbamateYield 184%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 3-{[(benzyloxy)carbonyl]amino}-7-bromoquinoline-2-carboxylic acid (360 mg, 0.897 mmol), tert-butyl methyl [(3R,4S,5S)-1-(3-aminopyridin-4-yl)-5-methylpiperidine-3,4-diyl]biscarbamate (303 mg, 0.799 mmol) and HATU (914.8 mg, 2.406 mmol) in DMF (5.0 mL), DIPEA (539 mg, 4.17 mmol) was added. The mixture was stirred at room temperature for 3 h. The volatile solvents were removed under reduced pressure, and the residue was purified by flash chromatography (40 g, 0-100% EtOAc in hexanes) to give the sub-title compound as a red viscous oil (1.120 g, 184%). The product was used in the next step without further purification. LCMS calc. for C36H41BrN7O7 (M+H)+: m/z=762.2. Found: 762.3.

Workup

  1. additionwas added
  2. customThe volatile solvents were removed under reduced pressure
  3. customthe residue was purified by flash chromatography (40 g, 0-100% EtOAc in hexanes)

Sources & evidence

ORD record
ord-6ff8aada8d2c4b94b60d090a52577f49
Source dataset
uspto-grants-2016_03
Patent number
US09278950B2

Reaction notes

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