Triethylamine → HCID 87717164, compound

HRID 899622Notes

Reaction equation

[C:1]([O:5][C:6]([NH:8][CH:9]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[CH2:10][CH2:11][CH2:12][OH:13])=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:27][S:28](Cl)(=[O:30])=[O:29]>ClCCl>[S:28]([O:13][CH2:12][CH2:11][CH2:10][CH:9]([NH:8][C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:7])[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1)(=[O:30])(=[O:29])[CH3:27]

Participants

Conditions

Temperature: 0 °C

Procedure

To a 0° C. solution of 4-[(t-butoxycarbonyl)-amino]-4-phenylbutanol (133 mg, 0.5 mmol) in dichloromethane (8 mL) was added triethylamine (0.140 mL, 1.0 mmol), followed by methanesulfonylchloride (0.057 mL, 0.75 mmol). The solution was then stirred at 0° C. for 15 minutes before being quenched with an aqueous ammonium chloride solution (2 mL). The aqueous and organic layers were then separated, the aqueous layer extracted twice with dichloromethane, and the combined organic fractions were dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to afford 4-[(t-butoxycarbonyl)-amino]-4-phenylbutanol mesylate as a yellow oil, which was used immediately in the next reaction without further purification. 1H NMR (CDCl3) δ 1.43 (s, 9H), 1.67-2.00 (m, 4H), 2.95 (s, 3H), 4.18 (t, 2H, J=7.1 Hz), 4.20 (m, 1H), 4.92 (br s, 1H (NH)), 7.21-7.33 (m, 5H).

Workup

custombefore being quenched with an aqueous ammonium chloride solution (2 mL)
customThe aqueous and organic layers were then separated
extractionthe aqueous layer extracted twice with dichloromethane
dry with materialthe combined organic fractions were dried over anhydrous sodium sulfate
filtrationfiltered
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-c815e5a98b554021899fee08064b3d36
Source dataset: uspto-grants-2008_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07354932B2

Reaction notes

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