Diisopropylethylamine → (2S,3R,4R,5S,6R)-6-(acetoxymethyl)-3-(3-(3-fluoropropyl)thioureido)tetrahydro-2H-pyran-2,4,5-triyl triacetate

HRID 1422543Notes

Reaction equation

HRID 1422543 reaction equation
[C:1]([O:4][C@H:5]1[C@H:10]([N:11]=[C:12]=[S:13])[C@@H:9]([O:14][C:15](=[O:17])[CH3:16])[C@H:8]([O:18][C:19](=[O:21])[CH3:20])[C@@H:7]([CH2:22][O:23][C:24](=[O:26])[CH3:25])[O:6]1)(=[O:3])[CH3:2].Cl.[F:28][CH2:29][CH2:30][CH2:31][NH2:32].CCN(C(C)C)C(C)C>C(Cl)Cl>[C:1]([O:4][C@H:5]1[C@H:10]([NH:11][C:12]([NH:32][CH2:31][CH2:30][CH2:29][F:28])=[S:13])[C@@H:9]([O:14][C:15](=[O:17])[CH3:16])[C@H:8]([O:18][C:19](=[O:21])[CH3:20])[C@@H:7]([CH2:22][O:23][C:24](=[O:26])[CH3:25])[O:6]1)(=[O:3])[CH3:2]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 14130735(2S,3R,4R,5S,6R)-6-(acetoxymethyl)-3-isothiocyanatotetrahydro-2H-pyran-2,4,5-triyl triacetateHCID 219074553-Fluoropropan-1-amine hydrochloride

Product 1

HCID 86715424(2S,3R,4R,5S,6R)-6-(acetoxymethyl)-3-(3-(3-fluoropropyl)thioureido)tetrahydro-2H-pyran-2,4,5-triyl triacetateYield 89.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (2S,3R,4R,5S,6R)-6-(acetoxymethyl)-3-isothiocyanatotetrahydro-2H-pyran-2,4,5-triyl triacetate (0.850 g, 2.19 mmol) and 3-fluoropropylamine hydrochloride (0.251 g, 2.21 mmol) in DCM (10 mL), was added DIPEA (0.415 g, 4.00 mmol). The reaction mixture was stirred at room temperature for 30 min, and then concentrated under reduced pressure. The residue was purified on silica gel by flash column chromatography (EtOAc/hexanes, 2:1 in), affording (2S,3R,4R,5S,6R)-6-(acetoxymethyl)-3-(3-(3-fluoropropyl)thioureido)tetrahydro-2H-pyran-2,4,5-triyl triacetate as a white solid (0.91 g, 88%).

Workup

  1. concentrationconcentrated under reduced pressure
  2. customThe residue was purified on silica gel by flash column chromatography (EtOAc/hexanes, 2:1 in)

Sources & evidence

ORD record
ord-cb488eb6d0354433b1f4b0dd57fd621c
Source dataset
uspto-grants-2015_01
Patent number
US08927507B2

Reaction notes

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