Reaktion #1905515

ord-277011c51eff44e0808dcdd5d87b8afe

Reaktionsgleichung

O=C(OCc1ccccc1)[C@H]1CCCN1Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
1-[2-(3,3-Dicyclohexyl-ureido)-thiazol-5-ylmethyl]-pyrrolidine-2 (R)-carboxylic acid benzyl ester
→
O=C(O)[C@H]1CCCN1Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
pure acid
Ausbeute 84.8%
O=C(O)[C@H]1CCCN1Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
1-[2-(3,3-Dicyclohexyl-ureido)-thiazol-5-yl-methyl]-pyrrolidine-2 (R)-carboxylic acid
Ausbeute 84.8%

Edukte

O=C(OCc1ccccc1)[C@H]1CCCN1Cc1cnc(NC(=O)N(C2CCCCC2)C2CCCCC2)s1
1-[2-(3,3-Dicyclohexyl-ureido)-thiazol-5-ylmethyl]-pyrrolidine-2 (R)-carboxylic acid benzyl ester

Reagenzien

[Pd]
palladium on carbon

Lösungsmittel

CO
MeOH

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Sonstigeto degas the mixture
  2. 2
    Sonstige(36 h)
  3. 3
    FiltrationAfter filtering
  4. 4
    Einengenconcentration

Vorschrift

1-[2-(3,3-Dicyclohexyl-ureido)-thiazol-5-ylmethyl]-pyrrolidine-2 (R)-carboxylic acid benzyl ester (50 mg, 0.095 mmol) was combined with palladium on carbon (25 mg) in MeOH. Vacuum was applied to degas the mixture. The reaction was subjected to hydrogen and vigorous stirring until no ester could be detected (36 h). After filtering and concentration, 35 mg (84%) pure acid was obtained by trituration.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07598391B2uspto-grants-2009_10