Triphenylphosphine → ethyl [(1S)-5-(3-{[6-chloro-3-(trifluoromethyl)-2-pyridinyl]amino}propoxy)-2,3-dihydro-1H-inden-1-yl]acetate

HRID 603468Notes

Reaction equation

HRID 603468 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([NH:8][CH2:9][CH2:10][CH2:11][OH:12])[C:5]([C:13]([F:16])([F:15])[F:14])=[CH:4][CH:3]=1.O[C:18]1[CH:19]=[C:20]2[C:24](=[CH:25][CH:26]=1)[C@H:23]([CH2:27][C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH2:22][CH2:21]2.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1COCC1>[Cl:1][C:2]1[N:7]=[C:6]([NH:8][CH2:9][CH2:10][CH2:11][O:12][C:18]2[CH:19]=[C:20]3[C:24](=[CH:25][CH:26]=2)[C@H:23]([CH2:27][C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH2:22][CH2:21]3)[C:5]([C:13]([F:16])([F:14])[F:15])=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 16110404ethyl 2-[(1S)-5-hydroxy-2,3-dihydro-1H-inden-1-yl]acetateHCID 593004473-{[6-Chloro-3-(trifluoromethyl)-2-pyridinyl]amino}-1-propanol

Product 1

HCID 59300543ethyl [(1S)-5-(3-{[6-chloro-3-(trifluoromethyl)-2-pyridinyl]amino}propoxy)-2,3-dihydro-1H-inden-1-yl]acetateYield 62%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 3-{[6-chloro-3-(trifluoromethyl)-2-pyridinyl]amino}-1-propanol (Example 302) (0.63 g, 2.45 mmol) and ethyl [(1S)-5-hydroxy-2,3-dihydro-1H-inden-1-yl]acetate (Example 6, 0.45 g, 2.05 mmol) in THF (6.80 mL) was added triphenylphosphine (0.70 g, 2.66 mmol) and 1,1′-(azodicarbonyl)-dipiperidine (0.68 g, 2.66 mmol) under argon. The golden yellow mixture was stirred at rt for 18 h, and then concentrated under reduced pressure. The product (0.58 g, 62%) was isolated after column chromatography (2:1 hexanes/EtOAc). 1H NMR (400 MHz, CD3OD) δ 7.65 (d, 1H), 7.02 (d, 1H), 6.76 (d, 1H), 6.69 (dd, 1H), 6.60 (d, 1H), 6.48 (b, 1H), 4.15 (q, 2H), 4.04 (t, 2H), 3.65 (q, 2H), 3.46 (qt, 1H), 2.92-2.68 (m, 3H), 2.42-2.30 (m, 2H), 2.08 (qt, 2H), 1.78-1.68 (m, 1H), 1.27 (t, 3H).

Workup

  1. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-5837dc37b48e45c7b79d7e8a473e03b1
Source dataset
uspto-grants-2011_03
Patent number
US07906653B2

Reaction notes

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