1-Aminoindane, (S)- → 4-{[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]-oxy}methyl)cyclopentyl]oxy}-N-[(1S)-2,3-dihydro-1H-inden-1-yl]pyridin-2-amine

HRID 447671Notes

Reaction equation

HRID 447671 reaction equation
CC(C)([O-])C.[K+].[Si:7]([O:14][C@@H:15]1[C@H:19]([CH2:20][O:21][Si:22]([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:24])[CH3:23])[CH2:18][C@@H:17]([O:29][C:30]2[CH:35]=[CH:34][N:33]=[C:32](Cl)[CH:31]=2)[CH2:16]1)([C:10]([CH3:13])([CH3:12])[CH3:11])([CH3:9])[CH3:8].[NH2:37][C@@H:38]1[C:46]2[C:41](=[CH:42][CH:43]=[CH:44][CH:45]=2)[CH2:40][CH2:39]1>COCCOC.CCOC(C)=O>[Si:7]([O:14][C@@H:15]1[C@H:19]([CH2:20][O:21][Si:22]([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:24])[CH3:23])[CH2:18][C@@H:17]([O:29][C:30]2[CH:35]=[CH:34][N:33]=[C:32]([NH:37][C@@H:38]3[C:46]4[C:41](=[CH:42][CH:43]=[CH:44][CH:45]=4)[CH2:40][CH2:39]3)[CH:31]=2)[CH2:16]1)([C:10]([CH3:13])([CH3:12])[CH3:11])([CH3:9])[CH3:8]

Participants

6

Reactant 3

HCID 70000841-Aminoindane, (S)-HCID 23665647Potassium tert-butoxideHCID 866187294-{[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]-oxy}methyl)cyclopentyl]oxy}-2-chloropyridine

Product 1

HCID 667978874-{[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]-oxy}methyl)cyclopentyl]oxy}-N-[(1S)-2,3-dihydro-1H-inden-1-yl]pyridin-2-amineYield 95%

Reagents, catalysts & solvents 2

HCID 80711,2-DimethoxyethaneSolvent2×HCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of [1,3-bis(2,6-diisopropylphenyl)imidazolidin-2-yl](chloro)[(2,3-η)-(1Z)-1-phenylprop-1-ene-2,3-diyl]palladium(2+) (7.8 mg, 0.000012 mol) and potassium tert-butoxide (73.7 mg, 0.000656 mol) under an atmosphere of argon was added 4-{[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]oxy}methyl)-cyclopentyl]oxy}-2-chloropyridine (281.8 mg, 0.0005968 mol) in 1 ml DME. The solution was stirred for 5 mins, then (S)-(+)-1-aminoindane (0.10 mL, 0.000776 mol) in 1.0 ml DME was added dropwise over 15 min. The solution was stirred overnight, then dissolved in 50 mL EtOAc, washed with water, and concentrated. The residue was purified by flash chromatography (30% EtOAc/hexanes) to afford the title compound (0.3219 g, 95%) as a white solid.

Workup

  1. stirringThe solution was stirred overnight
  2. washwashed with water
  3. concentrationconcentrated
  4. customThe residue was purified by flash chromatography (30% EtOAc/hexanes)

Sources & evidence

ORD record
ord-9476cef2c1b4404594da83afd3716d07
Source dataset
uspto-grants-2013_07
Patent number
US08481550B2

Reaction notes

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