Hydrochloric Acid → methyl 13-cyclohexyl-6-(hydroxymethyl)-6,7-dihydro-5H-indolo[2,1-a][2]benzazepine-10-carboxylate

HRID 421965Notes

Reaction equation

[CH:1]1([C:7]2[C:8]3[CH:9]=[CH:10][C:11]([C:29]([O:31][CH3:32])=[O:30])=[CH:12][C:13]=3[N:14]3[CH2:20][CH:19]([C:21](OC)=[O:22])[CH2:18][C:17]4[CH:25]=[CH:26][CH:27]=[CH:28][C:16]=4[C:15]=23)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[Li+].[BH4-].O.Cl>C1COCC1>[CH:1]1([C:7]2[C:8]3[CH:9]=[CH:10][C:11]([C:29]([O:31][CH3:32])=[O:30])=[CH:12][C:13]=3[N:14]3[CH2:20][CH:19]([CH2:21][OH:22])[CH2:18][C:17]4[CH:25]=[CH:26][CH:27]=[CH:28][C:16]=4[C:15]=23)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1

Participants

Conditions

Temperature: 0 °C

Procedure

Dimethyl 13-cyclohexyl-6,7-dihydro-5H-indolo[2,1-a][2]benzazepine-6,10-dicarboxylate (prepared according to International patent application publication WO 2006/020082) was dissolved in anhydrous THF (0.02 M) and after cooling at 0° C. BH3THF complex (1.5 eq.) was added followed by LiBH4 (1 eq.) and water (4 eq.). The mixture was left stirring at RT for 2h, then 1N hydrochloric acid was slowly added. The crude was extracted twice with EtOAc, dried over Na2SO4, filtered, and all volatiles were removed in vacuo to obtain desired compound as a yellow solid (85%) that was used in the next step without purification. (ES+) m/z 404 (M+H)+.

Workup

additionBH3THF complex (1.5 eq.) was added
waitThe mixture was left
extractionThe crude was extracted twice with EtOAc
dry with materialdried over Na2SO4
filtrationfiltered
customall volatiles were removed in vacuo

Sources & evidence

ORD record: ord-1b52f181c0f9412180590557b9e1ceaa
Source dataset: uspto-grants-2012_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08101595B2

Reaction notes

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