Triphenylphosphine → 4-chloro-5-iodo-7-(2-methylperhydrocyclopenta[c]pyrrol-5-yl)-7H-pyrrolo[2,3-d]pyrimidine

HRID 51530

Reaction equation

HRID 51530 reaction equation
[Cl:1][C:2]1[C:3]2[C:10]([I:11])=[CH:9][NH:8][C:4]=2[N:5]=[CH:6][N:7]=1.[CH3:12][N:13]1[CH2:17][CH:16]2[CH2:18][CH:19](O)[CH2:20][CH:15]2[CH2:14]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CCOC(/N=N/C(OCC)=O)=O>O1CCCC1>[Cl:1][C:2]1[C:3]2[C:10]([I:11])=[CH:9][N:8]([CH:19]3[CH2:20][CH:15]4[CH2:14][N:13]([CH3:12])[CH2:17][CH:16]4[CH2:18]3)[C:4]=2[N:5]=[CH:6][N:7]=1

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 5462977Diethyl azodicarboxylateHCID 148092816-Chloro-7-iodo-7-deazapurineHCID 227363385-Hydroxy-2-methyloctahydrocyclopenta[c]pyrrole

Product 1

HCID 227363754-chloro-5-iodo-7-(2-methylperhydrocyclopenta[c]pyrrol-5-yl)-7H-pyrrolo[2,3-d]pyrimidineYield 45.7%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 4-chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine (0.38 g, 1.36 mmol), 2-methylperhydrocyclopenta[c]pyrrol-5-ol (0.23 g, 1.63 mmol) and triphenylphosphine (0.71 g, 2.72 mmol) in tetrahydrofuran (20 mL) was treated with diethylazodicarboxylate (0.474 g, 2.72 mmol) and stirred for 2 hours at ambient temperature. The solvent was removed under reduced pressure and the residue was partitioned between dichloromethane (30 ml) and water (10 ml). The organic layer was washed with saturated aqueous sodium chloride (10 ml) then dried over magnesium sulfate then filtered and the filtrate evaporated under reduced pressure to give a residue. The residue was purified by flash chromatography on silica using dichloromethane/methanol (8:2) as mobile phase to yield 4-chloro-5-iodo-7-(2-methylperhydrocyclopenta[c]pyrrol-5-yl)-7H-pyrrolo[2,3-d]pyrimidine (0.25 g): 1H NMR (DMSO-d6, 400 MHz) δ 8.62 (s, 1H), 7.44 (s, 1H), 7.26 (s, 2H), 5.36 (m, 1H), 2.88 (m, 2H), 2.68 (m, 2H), 2.43 (m, 2H), 2.36 (s, 3H), 2.06-2.02 (m, 4H); TLC (dichloromethane/methanol 8:2) Rf =0.29; RP-HPLC (Hypersil HS C18, 5 μm, 100 A, 250×4.6 mm; 25-100% acetonitrile-0.1 M ammonium acetate over 10 min, 1 ml/min) tr=6.50 min; MS: MH+403.

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe residue was partitioned between dichloromethane (30 ml) and water (10 ml)
  3. washThe organic layer was washed with saturated aqueous sodium chloride (10 ml)
  4. dry with materialthen dried over magnesium sulfate
  5. filtrationthen filtered
  6. customthe filtrate evaporated under reduced pressure
  7. customto give a residue
  8. customThe residue was purified by flash chromatography on silica

Sources & evidence

ORD record
ord-307fe14a1dce4bf6b5a823049820f998
Source dataset
uspto-grants-2004_03
Patent number
US06713474B2

Linked notes

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