(5BETA,17BETA)-17-羟基-17-(甲基-D3)-2'H-雄甾-2-烯并[3,2-C]吡唑-5'(1'H)-酮 → 6-溴己酸甲酯

HRID 19431

反应方程式

HRID 19431 反应方程式
[Br:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][C:7]([OH:9])=[O:8].[CH3:10]O>>[Br:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][C:7]([O:9][CH3:10])=[O:8]

参与物

3

反应物 2

HCID 887(5BETA,17BETA)-17-羟基-17-(甲基-D3)-2'H-雄甾-2-烯并[3,2-C]吡唑-5'(1'H)-酮HCID 202106-溴己酸

产物 1

HCID 41702926-溴己酸甲酯收率 99%

实验过程

To a 1 L round bottom flask, charged with 20 g (102.5 mmol) of 6-bromohexanoic acid and 500 mL of methanol, was bubbled hydrogen chloride gas for 2-3 minutes. The mixture was stirred at room temperature for 4 hours and concentrated to afford 21.0 g of the product as a yellow oil (99%): 1H-NMR (200 MHz, d6-DMSO); 3.57 (s, 3H), 3.51 (t, 2H), 2.30 (t, 2H), 1.78 (pentet, 2H), and 1.62-1.27 (m, 4H) ppm.

后处理

  1. customwas bubbled hydrogen chloride gas for 2-3 minutes
  2. concentrationconcentrated

来源与证据

ORD记录
ord-47fee8242e1c4d13bc75ee30394f7a72
来源数据集
uspto-grants-2010_06
专利号
US07744853B2

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