Diisopropylethylamine → tert-Butyl (3R,4S)-3-{[[3-{[tert-butyl(dimethyl)silyl]oxy}-5-(3-methoxy-propyl)benzyl](cyclopropyl)amino]carbonyl}-4-{4-[2-(2,6-dichloro-4-methyl-phenoxy)ethoxy]phenyl}piperidine-1-carboxylate

HRID 658253Notes

Reaction equation

HRID 658253 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C@H:11]([C:14]2[CH:19]=[CH:18][C:17]([O:20][CH2:21][CH2:22][O:23][C:24]3[C:29]([Cl:30])=[CH:28][C:27]([CH3:31])=[CH:26][C:25]=3[Cl:32])=[CH:16][CH:15]=2)[C@@H:10]([C:33]([OH:35])=O)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Si:36]([O:43][C:44]1[CH:45]=[C:46]([CH:52]=[C:53]([CH2:55][CH2:56][CH2:57][O:58][CH3:59])[CH:54]=1)[CH2:47][NH:48][CH:49]1[CH2:51][CH2:50]1)([C:39]([CH3:42])([CH3:41])[CH3:40])([CH3:38])[CH3:37].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>C(Cl)Cl.CCOCC>[Si:36]([O:43][C:44]1[CH:45]=[C:46]([CH:52]=[C:53]([CH2:55][CH2:56][CH2:57][O:58][CH3:59])[CH:54]=1)[CH2:47][N:48]([CH:49]1[CH2:51][CH2:50]1)[C:33]([C@@H:10]1[C@@H:11]([C:14]2[CH:19]=[CH:18][C:17]([O:20][CH2:21][CH2:22][O:23][C:24]3[C:29]([Cl:30])=[CH:28][C:27]([CH3:31])=[CH:26][C:25]=3[Cl:32])=[CH:16][CH:15]=2)[CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH2:9]1)=[O:35])([C:39]([CH3:42])([CH3:41])[CH3:40])([CH3:37])[CH3:38]

Participants

7

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 57956095N-[3-{[tert-Butyl(dimethyl)silyl]oxy}-5-(3-methoxypropyl)benzyl]cyclo-propanamineHCID 59234216(3R,4S)-1-(tert-butoxycarbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]phenyl}piperidine-3-carboxylic acid

Product 1

HCID 86639853tert-Butyl (3R,4S)-3-{[[3-{[tert-butyl(dimethyl)silyl]oxy}-5-(3-methoxy-propyl)benzyl](cyclopropyl)amino]carbonyl}-4-{4-[2-(2,6-dichloro-4-methyl-phenoxy)ethoxy]phenyl}piperidine-1-carboxylate

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of (3R,4S)-1-(tert-butoxycarbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]phenyl}piperidine-3-carboxylic acid (piperidine acid 1) (1 eq) and N-[3-{[tert-Butyl(dimethyl)silyl]oxy}-5-(3-methoxypropyl)benzyl]cyclo-propanamine (amine 1) (1.8 eq.) in DCM (0.15 M) was added HATU (1.5 eq.) and Hunig's base (3 eq.). After stirring for 18 hr at rt, the reaction was diluted with ether. The organic extract was washed three times with 1 N aqueous HCl, water, brine, dried over MgSO4, and concentrated in vacuo. The crude product was purified by flash column chromatography (SiO2, 20% EtOAc in Hex) to afford the title compound as an oil.

Workup

  1. extractionThe organic extract
  2. washwas washed three times with 1 N aqueous HCl, water, brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated in vacuo
  5. customThe crude product was purified by flash column chromatography (SiO2, 20% EtOAc in Hex)

Sources & evidence

ORD record
ord-43dc98af8a2b401194bb63835ec3fb9c
Source dataset
uspto-grants-2011_12
Patent number
US08076359B2

Reaction notes

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