1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (5S)-((3R,3aR,6R,6aR)-6-(tetrahydro-2H-pyran-2-yloxy)-hexahydrofuro[3,2-b]furan-3-yl)5,6-bis(nitrooxy)hexanoate

HRID 1643407Notes

Reaction equation

HRID 1643407 reaction equation
[O:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]1[O:7][C@H:8]1[C@H:12]2[O:13][CH2:14][C@@H:15]([OH:16])[C@H:11]2[O:10][CH2:9]1.[N+:17]([O:20][C@H:21]([CH2:28][O:29][N+:30]([O-:32])=[O:31])[CH2:22][CH2:23][CH2:24][C:25](O)=[O:26])([O-:19])=[O:18].CCN=C=NCCCN(C)C>C(Cl)Cl.CN(C)C1C=CN=CC=1>[O:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]1[O:7][C@H:8]1[C@H:12]2[O:13][CH2:14][C@@H:15]([O:16][C:25](=[O:26])[CH2:24][CH2:23][CH2:22][C@H:21]([O:20][N+:17]([O-:19])=[O:18])[CH2:28][O:29][N+:30]([O-:32])=[O:31])[C@H:11]2[O:10][CH2:9]1

Participants

6

Reactant 3

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 29923588(S)-5,6-di(nitrooxy)hexanoic acidHCID 58209383(3R,3aR,6R,6aR)-6-(tetrahydro-2H-pyran-2-yloxy)hexahydrofuro[3,2-b]furan-3-ol

Product 1

HCID 58209457(5S)-((3R,3aR,6R,6aR)-6-(tetrahydro-2H-pyran-2-yloxy)-hexahydrofuro[3,2-b]furan-3-yl)5,6-bis(nitrooxy)hexanoate

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×

Procedure

To a solution of (3R,3aR,6R,6aR)-6-(tetrahydro-2H-pyran-2-yloxy)-hexahydrofuro[3,2-b]furan-3-ol (2.96 g, 12.9 mmol) in DCM (40.8 mL) a solution of the crude (S)-5,6-di(nitrooxy)hexanoic acid (3.06 g, 12.85 mmol) (Step D) in DCM (9.15 mL) was added followed by EDAC (3.69 g, 19.28 mmol) and 4-dimethylaminopyridine (175 mg, 1.28 mmol). The reaction mixture was stirred at rt for 16.5 hrs. The solvent was removed under reduced pressure. The crude residue was purified by flash chromatography (Biotage SP1, EtOAc/n-hexane from 10 to 60%), affording the title product as pale yellow oil.

Workup

  1. customThe solvent was removed under reduced pressure
  2. customThe crude residue was purified by flash chromatography (Biotage SP1, EtOAc/n-hexane from 10 to 60%)

Sources & evidence

ORD record
ord-52540b14fc184859abe24a3a04d1a793
Source dataset
uspto-grants-2012_02
Patent number
US08119806B2

Reaction notes

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