Reaktion #3798

Reaktionsgleichung

2-[2-[2-(1-tert-butoxycarbonyl-3-methyl-butylcarbamoyl)-6-methyl-phenyldisulfanyl]-3-methylbenzoylamino]-4-methyl-pentanoic acid tert-butyl ester

2-[2-[2-(1-tert-Butoxycarbonyl-3-methylbutylcarbamoyl)-6-methyl-phenyldisulfanyl]-3-methylbenzoylamino]-4-methyl-pentanoic acid tert-butyl ester

trifluoroacetic acid

→

title compound

Ausbeute 54.9%

2-{2-[2-(1-Carboxy-3-methyl-butylcarbamoyl)-6-methyl-phenyldisulfanyl]-3-methyl-benzoylamino}-4-methyl-pentanoic acid

Ausbeute 54.9%

Lösungsmittel

dichloromethane

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThis compound was prepared
2. 2
   SonstigeThe crude product was recrystallized from dimethylformamide/water

Vorschrift

This compound was prepared according to the procedure described in Example 50 using [S-(R*,R*)]-2-[2-[2-(1-tert-butoxycarbonyl-3-methyl-butylcarbamoyl)-6-methyl-phenyldisulfanyl]-3-methylbenzoylamino]-4-methyl-pentanoic acid tert-butyl ester (0.9 g, 1.3 mmol) from Example 32, 10 mL dichloromethane, and 10 mL trifluoroacetic acid. The crude product was recrystallized from dimethylformamide/water to afford 0.4 g of the title compound, mp 210°-211° C.

Quelle