HRID2216181

反应详情

EQUATION

反应方程式

HRID 2216181 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

1,3-bis(tert-Butoxycarbonyl)-2-methyl-2-thiopseudourea (433 mg, 1.49 mmol) was added to a solution of 4-[5-(3-{4-amino-3′-[5-(tert-butoxycarbonylamino-imino-methyl)-2-methylsulfanyl-thiophene-3-sulfonyl]-6-methyl-biphenyl-2-yl}-ureido)-pentyloxy]-benzoic acid (233 mg, 0.298 mmol, Example 283: step e) in 5% AcOH/MeOH (10 mL) over 2 days at 35° C. The solvents were removed in vacuo and the residue was purified by flash chromatography (1–6% MeOH/methylene chloride) to afford the title compound as a yellow solid (70 mg, 23%). ESI-MS (m/z): Calcd. for C48H61N7O12S3: 1024.4 (M+1); found: 1024.0.

WORKUP

后处理

  1. customThe solvents were removed in vacuo
  2. customthe residue was purified by flash chromatography (1–6% MeOH/methylene chloride)