4-Methylmorpholine → 2-acetoxy-N-[[trans 3-(acetylthiomethyl)-2-oxo-1-azacyclodecan-10-yl]-carbonyl]-ethylamine

HRID 21972

Reaction equation

[C:1]([S:4][CH2:5][C@H:6]1[CH2:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10][C@H:9]([C:16]([OH:18])=O)[NH:8][C:7]1=[O:19])(=[O:3])[CH3:2].Cl.[C:21]([O:24][CH2:25][CH2:26][NH2:27])(=[O:23])[CH3:22].ON1C2C=CC=CC=2N=N1.CN1CCOCC1.Cl.CN(CCCN=C=NCC)C>C(Cl)Cl>[C:21]([O:24][CH2:25][CH2:26][NH:27][C:16]([C@@H:9]1[NH:8][C:7](=[O:19])[C@@H:6]([CH2:5][S:4][C:1](=[O:3])[CH3:2])[CH2:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]1)=[O:18])(=[O:23])[CH3:22]

Participants

Conditions

Temperature: 0 °C

Procedure

Trans 3-(acetylthiomethyl)-2-oxo-1-azacyclodecane-10-carboxylic acid (0.15 g, 0.52 mmol), 1-acetoxy-2-aminoethane hydrochloride (0.073 g, 0.52 mmol), 1-hydroxybenzotriazole (0.12 g, 0.52 mmol), and 4-methylmorpholine (0.17 mL, 1.56 mmol) are dissolved in methylene chloride (3.0 mL), and the reaction is cooled to 0° C. To this solution is added N-(dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (0.20 g, 1.04 mmol), and the reaction is allowed to warm up to room temperature and then stirred overnight. The reaction is diluted with more methylene chloride, and the organic layer is washed with 1N hydrochloric acid, saturated sodium bicarbonate, dried (MgSO4), and the solvent is evaporated. The product is purified by silica gel chromatography (75% ethyl acetate/hexane) to give 2-acetoxy-N-[[trans 3-(acetylthiomethyl)-2-oxo-1-azacyclodecan-10-yl]-carbonyl]-ethylamine, MS: M+1=373.

Workup

temperatureto warm up to room temperature
washthe organic layer is washed with 1N hydrochloric acid, saturated sodium bicarbonate
dry with materialdried (MgSO4)
customthe solvent is evaporated
customThe product is purified by silica gel chromatography (75% ethyl acetate/hexane)

Sources & evidence

ORD record: ord-7951d5471ad442c6af52215ba75dbe41
Source dataset: uspto-grants-1995_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05426103

Linked notes

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