(3R)-3-Aminopiperidine, 3-BOC protected → (R)-tert-butyl 1-(4-(2-bromo-5-fluorobenzyl)-6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)piperidin-3-ylcarbamate

HRID 240281

反応式

HRID 240281 の反応式
[Br:1][C:2]1[CH:18]=[CH:17][C:16]([F:19])=[CH:15][C:3]=1[CH2:4][N:5]1[C:10](=[O:11])[C:9]([CH3:12])=[N:8][N:7]=[C:6]1SC.[NH:20]1[CH2:25][CH2:24][CH2:23][C@@H:22]([NH:26][C:27](=[O:33])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30])[CH2:21]1>>[Br:1][C:2]1[CH:18]=[CH:17][C:16]([F:19])=[CH:15][C:3]=1[CH2:4][N:5]1[C:10](=[O:11])[C:9]([CH3:12])=[N:8][N:7]=[C:6]1[N:20]1[CH2:25][CH2:24][CH2:23][C@@H:22]([NH:26][C:27](=[O:33])[O:28][C:29]([CH3:31])([CH3:30])[CH3:32])[CH2:21]1

参加物

3

反応物 2

HCID 1514172(3R)-3-Aminopiperidine, 3-BOC protectedHCID 583285304-(2-bromo-5-fluorobenzyl)-6-methyl-3-(methylthio)-1,2,4-triazin-5(4H)-one

生成物 1

HCID 58328539(R)-tert-butyl 1-(4-(2-bromo-5-fluorobenzyl)-6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)piperidin-3-ylcarbamate

反応条件

温度
135 °C

実験手順

The mixture of 4-(2-bromo-5-fluorobenzyl)-6-methyl-3-(methylthio)-1,2,4-triazin-5(4H)-one (17, 180 mg, 0.523 mmol) and (R)-tert-butyl piperidin-3-ylcarbamate (208 mg, 1.04 mmol) was ground for 5 min and then heated in a tube under nitrogen atmosphere at 135° C. for 13 h. The mixture was separated by silica gel column, and eluted with 10-50% ethyl acetate in petroleum ether to give (R)-tert-butyl 1-(4-(2-bromo-5-fluorobenzyl)-6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)piperidin-3-ylcarbamate (18). MS: m/z, 496 (100%, M+1), 498 (100%).

後処理

  1. customThe mixture was separated by silica gel column
  2. washeluted with 10-50% ethyl acetate in petroleum ether

出典と根拠

ORDレコード
ord-4956c51ad41e4fdfa7aa5931f8e62f3e
出典データセット
uspto-grants-2014_02
特許番号
US08648073B2

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