HRID1375708

反应详情

EQUATION

反应方程式

HRID 1375708 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

To a solution of 16.4 g of (2Z)-4-{[tert-butyl(dimethyl)silyl]oxy}-2-[4-(methyl-sulfonyl)phenyl]-3-phenylbut-2-en-1-ol, 1.92 g of DMAP and 7.30 g of Boc-Glycine in 125 mL of CH2Cl2 at 0° C. was added 8.0 g of EDCl. The reaction mixture was stirred for 4 h. Then saturated ammonium chloride solution was added and extracted with EtOAc. The organic layer was combined, washed with brine and dried over Na2SO4. The solvent was evaporated and the residue was purified by flash chromatography over silica gel (5–55% EtOAc/hexane) to afford 22 g of the titled compound as a colorless oil. 1H (500 MHz, acetone-d6): δ 7.67 (d, 2H), 7.34 (d, 2H), 7.13–7.04 (m, 5H), 6.26 (br s, NH), 5.23 (s, 2H), 4.76 (s, 2H), 3.73 (d, 2H), 3.02 (s, 3H), 1.40 (s, 9H), 0.81 (s, 9H), −0.01 (s, 6H).

WORKUP

后处理

  1. extractionextracted with EtOAc
  2. washwashed with brine
  3. dry with materialdried over Na2SO4
  4. customThe solvent was evaporated
  5. customthe residue was purified by flash chromatography over silica gel (5–55% EtOAc/hexane)