Triphenylphosphine → ethyl ((1S)-5-{3-[(2,5-dichloro-4-pyrimidinyl)amino]propoxy}-2,3-dihydro-1H-inden-1-yl)acetate

HRID 2235958Notes

Reaction equation

HRID 2235958 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([NH:8][CH2:9][CH2:10][CH2:11][OH:12])[C:5]([Cl:13])=[CH:4][N:3]=1.[CH2:14]([O:16][C:17](=[O:29])[CH2:18][C@H:19]1[C:27]2[C:22](=[CH:23][C:24](O)=[CH:25][CH:26]=2)[CH2:21][CH2:20]1)[CH3:15].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1CCN(C(N=NC(N2CCCCC2)=O)=O)CC1>C1COCC1>[CH2:14]([O:16][C:17](=[O:29])[CH2:18][C@H:19]1[C:27]2[C:22](=[CH:23][C:24]([O:12][CH2:11][CH2:10][CH2:9][NH:8][C:6]3[C:5]([Cl:13])=[CH:4][N:3]=[C:2]([Cl:1])[N:7]=3)=[CH:25][CH:26]=2)[CH2:21][CH2:20]1)[CH3:15]

Participants

6

Reactant 4

HCID 11776Triphenylphosphine2×HCID 730421,1'-(Azodicarbonyl)dipiperidine2×HCID 16110404ethyl 2-[(1S)-5-hydroxy-2,3-dihydro-1H-inden-1-yl]acetateHCID 593004183-[(2,5-Dichloro-4-pyrimidinyl)amino]-1-propanol

Product 1

HCID 59300519ethyl ((1S)-5-{3-[(2,5-dichloro-4-pyrimidinyl)amino]propoxy}-2,3-dihydro-1H-inden-1-yl)acetateYield 89%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 3-[(2-chloro-5-chloro-4-pyrimidinyl)amino]-1-propanol (Example 440, 1.08 g, 4.90 mmol) and ethyl[(1S)-5-hydroxy-2,3-dihydro-1H-inden-1-yl]acetate (Example 6, 539 mg, 2.45 mmol) in THF (40 mL) were added PPh3 (1.29 g, 4.90 mmol) and ADDP (1.26 g, 4.90 mmol). The reaction mixture was vigorously stirred at rt for 72 h, after which additional amounts of PPh3 (1.29 g, 4.90 mmol) and ADDP (1.26 g, 4.90 mmol) were added. After stirring for an additional 24 h, the reaction mixture was diluted with hexanes, filtered through Celite® and the filtrate concentrated under reduced pressure. The residue was then purified by silica gel chromatography (1:1 hexanes/EtOAc) to give the product (920 mg, 89%). 1H NMR (400 MHz, CDCl3): δ 1.29 (t, 3H), 1.71-1.82 (m, 1H), 2.15 (qt, 2H), 2.35-2.47 (m, 2H), 2.72 (dd, 1H), 2.79-2.98 (m, 2H), 3.48-3.58 (m, 1H), 3.74 (q, 2H), 4.12 (t, 2H), 4.18 (q, 2H), 6.22-6.31 (b, 1H), 6.73 (dd, 1H), 6.79 (d, 1H), 7.08 (d, 1H), 7.25 (s, 1H).

Workup

  1. stirringAfter stirring for an additional 24 h
  2. filtrationfiltered through Celite®
  3. concentrationthe filtrate concentrated under reduced pressure
  4. customThe residue was then purified by silica gel chromatography (1:1 hexanes/EtOAc)

Sources & evidence

ORD record
ord-452f0c6975ed44369ada37df524f870a
Source dataset
uspto-grants-2010_05
Patent number
US07714004B2

Reaction notes

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