The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2006
Filed:
Jul. 13, 2000
Peter Herold, Basel, CH;
Stefan Stutz, Basel, CH;
Adriano Indolese, Möhlin, CH;
Speedel Pharma AG, Basel, CH;
Abstract
From compounds of formula IIwherein Rand Rare independently of one another H, C–Calkyl, C–Chalogenalkyl, C–Calkoxy, C–Calkoxy-C–Calkyl, or C–Calkoxy-C–Calkyloxy, Ris C–Calkyl, Ris C–Calkyl, and Ris C–Calkyl, C–Chydroxyalkyl, C–Calkoxy-C–C-alkyl, C–Calkanoyloxy-C–Calkyl, C–Caminoalkyl, C–Calkylamino-C–C-alkyl, C–C-dialkylamino-C–C-alkyl, C–C-alkanoylamido-C–C-alkyl, HO(O)C—C–C-alkyl, C–Calkyl-O—(O)C—C–Calkyl, HN—C(O)—C–Calkyl, C–Calkyl-HN—C(O)—C–Calkyl or (C–Calkyl)N—C(O)—C–C-alkyl, Ris C–Calkyl, Ris C–Calkyl or C–Calkoxy, or Rand Rtogether are tetramethylene, pentamethylene, 3-oxa-1,5-pentylene or —CHCHO— substituted, if necessary, with C–C-Alkyl, phenyl or benzyl, it is possible—through halolactonization, azidation of the halogen group, ring opening with an amine R—NH, and reduction of the azide group to form the amino group—to prepare compounds of formula Iwherein Ris C–Calkyl, C–Chydroxyalkyl, C–Calkoxy-C–Calkyl, C–Calkanoyloxy-C–Calkyl, C–Caminoalkyl, C–Calkylamino-C–Calkyl, C–Cdialkylamino-C–C-alkyl, C–Calkanoylamido-C–Calkyl, HO(O)C—C–Calkyl, C–Calkyl-O—(O)C—C–Calkyl, HN—C(O)—C–Calkyl, C–Calkyl-HN—C(O)—C–Calkyl or (C–Calkyl)—N—C(O)—C–Calkyl. If 2(S), 7(R)-diastereomer of formula II is used, the 2(S), 4(S), 5(S), 7(S)-diastereomer of formula Iais obtained in a high degree of purity.