Sodium Iodide → HCID 23387475, compound

HRID 488992Notes

Reaction equation

HRID 488992 reaction equation
Cl[CH2:2][O:3][C:4]([O:6][CH:7]([CH2:24][O:25][C:26](=[O:39])[C@H:27]([CH:36]([CH3:38])[CH3:37])[NH:28][C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:8][O:9][C:10](=[O:23])[C@H:11]([CH:20]([CH3:22])[CH3:21])[NH:12][C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:5].[Na+].[I-:41]>>[I:41][CH2:2][O:3][C:4]([O:6][CH:7]([CH2:24][O:25][C:26](=[O:39])[C@H:27]([CH:36]([CH3:38])[CH3:37])[NH:28][C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:8][O:9][C:10](=[O:23])[C@H:11]([CH:20]([CH3:22])[CH3:21])[NH:12][C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])=[O:5]

Participants

3

Reactant 2

HCID 5238Sodium IodideHCID 23387473HCID 23387473, compound

Product 1

HCID 23387475HCID 23387475, compoundYield 92%

Conditions

Temperature
80 °C

Procedure

A solution of 2-O-chloromethoxycarbonyl-1,3-di-O-(N-tert-butoxycarbonyl-L-valyl)propane-1,2,3-triol (7.86 g, 13.5 mmol) and NaI (8.09 g, 54.0 mmol) in 135 mL dry acatonitirile was refluxed at 80° C. for 4 h under N2. The reaction mixture was concentrated under vacuum, and then partitioned between 150 mL diethyl ether and 50 mL H2O. The aqueous layer was reextracted with 2×25 mL ether. The combined organic phases were washed successively with 25 mL aqueous Na2S2O3 and 50 mL brine, dried over NA2SO4, and concentrated. Flash column chromatography (silica gel, 2/1 hexane-ethyl acetate gave 8.38 g (92%) title product (alternative name: 2-iodomethoxycarbonyloxy-1,3-bis-(N-tert-butoxycarbonyl-L-valyloxy)propane or 1,3-bis(N-tert-butoxycarbonyl-L-valyloxy)-2-propyl iodomethyl carbonate) as a white solid.

Workup

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. custompartitioned between 150 mL diethyl ether and 50 mL H2O
  3. washThe combined organic phases were washed successively with 25 mL aqueous Na2S2O3 and 50 mL brine
  4. customdried over NA2SO4
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-f69231b12d6b4a2b8f6e4e9733aa6f60
Source dataset
uspto-grants-2005_12
Patent number
US06974802B2

Reaction notes

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