Hydrochloric Acid → HCID 86743635, compound
Reaction equation
[ClH:1].[Br-:2].[C:3]([O:6][C@@H:7]1[C@@H:24]([N:25]2[CH2:30][CH2:29][CH2:28][CH2:27][CH2:26]2)[CH2:23][C@@:22]2([CH3:31])[C@@H:9]([CH2:10][CH2:11][C@@H:12]3[C@@H:21]2[CH2:20][CH2:19][C@@:17]2([CH3:18])[C@H:13]3[CH2:14][C@H:15]([N+:38]3([CH3:44])[CH2:43][CH2:42][CH2:41][CH2:40][CH2:39]3)[C@H:16]2[O:32][C:33](=[O:37])[CH2:34][CH2:35][CH3:36])[CH2:8]1)(=[O:5])[CH3:4].C(OCC)C>ClCCl.CC(C)=O>[ClH:1].[Br-:2].[C:3]([O:6][C@@H:7]1[C@@H:24]([N:25]2[CH2:26][CH2:27][CH2:28][CH2:29][CH2:30]2)[CH2:23][C@@:22]2([CH3:31])[C@@H:9]([CH2:10][CH2:11][C@@H:12]3[C@@H:21]2[CH2:20][CH2:19][C@@:17]2([CH3:18])[C@H:13]3[CH2:14][C@H:15]([N+:38]3([CH3:44])[CH2:39][CH2:40][CH2:41][CH2:42][CH2:43]3)[C@H:16]2[O:32][C:33](=[O:37])[CH2:34][CH2:35][CH3:36])[CH2:8]1)(=[O:5])[CH3:4]Participants
6
Procedure
Hydrogen chloride gas Was passed through a solution of 1-[(2β, 3α, 5α, 16β, 17α)-3-(acetyloxy)-17-(1-oxobutoxy)-2-(1-piperidinyl)-androstan-16-yl]-1-methylpiperidinium bromide, (0.5 g) in dichloromethane (40 ml), then the solution was evaporated to give a froth. The product was dissolved in acetone and diethyl ether was added to precipitate an amorphous solid, Which Was filtered off and washed with ether. The solid was heated under reflux in acetone to give 1-[(2β, 3α, 5α, 16β, 17α)-3-(acetyloxy)-17-(1-oxobutoxy)-2-(1-piperidinyl)-androstan-16-yl]-1-methylpiperidinium bromide hydrochloride as prisms (0.45 g), m.p. 220°-228° C., [α]D20 =+57.2° (c 1.32 in CHCl3).
Workup
- customthe solution was evaporated
- customto give a froth
- customto precipitate an amorphous solid, Which
- filtrationWas filtered off
- washwashed with ether
- temperatureThe solid was heated
- temperatureunder reflux in acetone
Sources & evidence
- ORD record
- ord-b9ff280bc862488c8f97a0fb453d4e12
- Source dataset
- uspto-grants-1990_01
- Patent number
- US04891366
Reaction notes
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