HRID69989

反应详情

EQUATION

反应方程式

HRID 69989 的结构方程式

PROCEDURE

实验过程

Following Method 11 of Example 305, cis (+/−)-tert-butyl 1-(3-aminopyridin-4-yl)-5-((tert-butyldimethylsilyloxy)methyl)piperidin-3-ylcarbamate and 6-bromo-3-fluoropicolinic acid were coupled. Following purification by RP HPLC the product fractions were allowed to stand at it overnight in the 0.1% TFA acetonitile/water solution which removed the silyl group. Upon subsequent lyophilization, cis (+/−)-tert-butyl 1-(3-(6-bromo-3-fluoropicolinamido)pyridin-4-yl)-5-(hydroxymethyl)piperidin-3-ylcarbamate was obtained and used in Suzuki reactions directly. LCMS (m/z): 524.0/526.0 (MH+); LC Rt=2.90 min.

WORKUP

后处理

  1. custompurification by RP HPLC the product fractions
  2. customto stand at it overnight in the 0.1% TFA acetonitile/water solution which
  3. customremoved the silyl group