Triethylamine → Adamantane-1-carboxylic acid (5-chloro-thiazol-2-yl)-amide

HRID 255076

Reaction equation

[NH2:1][C:2]1[S:3][C:4]([Cl:7])=[CH:5][N:6]=1.[C:8]12([C:18](Cl)=[O:19])[CH2:17][CH:12]3[CH2:13][CH:14]([CH2:16][CH:10]([CH2:11]3)[CH2:9]1)[CH2:15]2.C(N(CC)CC)C>CN(C)C1C=CN=CC=1.C1COCC1.C(OCC)(=O)C>[Cl:7][C:4]1[S:3][C:2]([NH:1][C:18]([C:8]23[CH2:17][CH:12]4[CH2:11][CH:10]([CH2:16][CH:14]([CH2:13]4)[CH2:15]2)[CH2:9]3)=[O:19])=[N:6][CH:5]=1

Participants

Conditions

Temperature: 80 °C

Procedure

A mixture of 2-amino-5-chlorothiazole (2.00 g, 14.9 mmol), 1-adamantanecarbonyl chloride (3.54 g, 17.8 mmol), 4-dimethylaminopyridine (1.10 g, 0.90 mmol) and triethylamine (4.15 mL, 23.0 mmol) in 80 mL of THF was stirred at 80° C. for 48 hours The mixture was cooled to ambient temperature, diluted with 100 mL of ethyl acetate and washed with brine. The layers were separated and the aqueous phase was extracted twice with 50 mL of ethyl acetate. The combined organic extracts were dried over anhydrous Na2SO4, filtered, and concentrated. Purification by column chromatography (SiO2, dichloromethane) afforded 2.27 g of the title compound: MS (DCI/NH3) m/z 297 (M+H)+.

Workup

temperaturewas cooled to ambient temperature
washwashed with brine
customThe layers were separated
extractionthe aqueous phase was extracted twice with 50 mL of ethyl acetate
dry with materialThe combined organic extracts were dried over anhydrous Na2SO4
filtrationfiltered
concentrationconcentrated
customPurification by column chromatography (SiO2, dichloromethane)

Sources & evidence

ORD record: ord-db9f264b210b4ee888b9dfde0a1eb5e9
Source dataset: uspto-grants-2011_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07875639B2

Linked notes

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