Boron tribromide → (+/-)-trans-6-Ethyl-2-ethoxycarbonyl-8a-(3-hydroxyphenyl)-3-methyl-4,4a,5,6,7,8,8a,9-octahydro-1H-pyrrolo[2,3-g]isoquinoline

HRID 2861

反応式

HRID 2861 の反応式
[CH2:1]([N:3]1[CH2:12][CH2:11][C@:10]2([C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([O:19]C)[CH:14]=3)[C@H:5]([CH2:6][C:7]3[C:23]([CH3:24])=[C:22]([C:25]([O:27][CH2:28][CH3:29])=[O:26])[NH:21][C:8]=3[CH2:9]2)[CH2:4]1)[CH3:2].B(Br)(Br)Br>>[CH2:1]([N:3]1[CH2:12][CH2:11][C@:10]2([C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([OH:19])[CH:14]=3)[C@H:5]([CH2:6][C:7]3[C:23]([CH3:24])=[C:22]([C:25]([O:27][CH2:28][CH3:29])=[O:26])[NH:21][C:8]=3[CH2:9]2)[CH2:4]1)[CH3:2]

参加物

3

反応物 2

HCID 25134Boron tribromideHCID 22883674(+/-)-trans-6-Ethyl-2-ethoxycarbonyl-3-methyl-8a-(3-methoxyphenyl)-4,4a,5,6,7,8,8a,9-octahydro-1H-pyrrolo[2,3-g]isoquinoline

生成物 1

HCID 22883675(+/-)-trans-6-Ethyl-2-ethoxycarbonyl-8a-(3-hydroxyphenyl)-3-methyl-4,4a,5,6,7,8,8a,9-octahydro-1H-pyrrolo[2,3-g]isoquinoline収率 20.9%

実験手順

0.6 g (1.5 mmol) of (±)-trans-6-ethyl-2-ethoxycarbonyl-3-methyl-8a-(3-methoxyphenyl)-4,4a,5,6,7,8,8a,9-octahydro-1H-pyrrolo[2,3-g]isoquinoline were treated with 0.84 ml (9.0 mmol) of boron tribromide as described in example 2. The crude solid was purified by flash chromatography (AcOEt/MeOH/conc. NH4OH 80:20:2), yielding 0.12 g of the title compound. M.p.=195°-197° C.

後処理

  1. customThe crude solid was purified by flash chromatography (AcOEt/MeOH/conc. NH4OH 80:20:2)

出典と根拠

ORDレコード
ord-3f82d7c91db94bdba2a3ad864f8f9a22
出典データセット
uspto-grants-1998_03
特許番号
US05731322

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