3-Chloropropanesulphonyl chloride → 3-(3-Chloropropylsulfonylamino)-2-methoxy-1-octadecylcarbamoyloxypropane

HRID 846963Notes

Reaction equation

[CH3:1][O:2][CH:3]([CH2:6][O:7][C:8](=[O:28])[NH:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])[CH2:4][NH2:5].[Cl:29][CH2:30][CH2:31][CH2:32][S:33](Cl)(=[O:35])=[O:34]>ClCCl.C(N(CC)CC)C>[Cl:29][CH2:30][CH2:31][CH2:32][S:33]([NH:5][CH2:4][CH:3]([O:2][CH3:1])[CH2:6][O:7][C:8](=[O:28])[NH:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])(=[O:35])=[O:34]

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 1.018 g (2.95 mM) of 3-hexadecylthio-2-methoxypropylamine IV a2 in 15 ml of dichloromethane and 0.534 ml (3.83 mM) of triethylamine is added 0.563 mg (3.24 mM) of 3-chloropropanesulfonyl chloride with ice-cooling and the mixture is stirred at 0° C. for 3 hours. After the solvent is evaporated, the residue is purified by the column chromatography on silica gel with a n-hexane-ethyl acetate (4:1) mixture as an eluent. The product is recrystallized from chloroform-n-hexane to give 1.275 g (2.62 mM) of 3-(3-chloropropylsulfonylamino)-1-hexadecylthio-2-methoxypropane III a2 as a colorless powder in 89% yield.

Workup

temperaturecooling
customAfter the solvent is evaporated
customthe residue is purified by the column chromatography on silica gel with a n-hexane-ethyl acetate (4:1) mixture as an eluent
customThe product is recrystallized from chloroform-n-hexane

Sources & evidence

ORD record: ord-bf77f976d2ab424b85016d04f96ef857
Source dataset: uspto-grants-1992_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05138067

Reaction notes

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