Patent · US Expired

Spirocyclic aminoacid derivatives, processes for their preparation, agents containing them and their use and new spirocyclic aminoacids as intermediates and processes for their preparation

US4620012A · kind A · utility

18Cited by
0References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 10, 1984
Grant dateOct 28, 1986
Priority date
Expiry dateJan 10, 2004

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K38/00
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

The invention relates to new spirocyclic aminoacid derivatives of the formula I ##STR1## in which m denotes 1 or 2, n denotes 0 or 1, R denotes hydrogen, alkyl or aralkyl, R.sup.1 denotes hydrogen or alkyl which can be optionally substituted by amino, acylamino or benzoylamino, alkenyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, aryl or partially hydrogenated aryl, each of which can be substituted by alkyl, alkoxy or halogen, arylalkyl or aroylalkyl, both of which can be substituted as defined above in the aryl radical, an S- or O- and/or N-heterocyclic radical or a side chain of an .alpha.-aminoacid, R.sup.2 denotes hydrogen, alkyl, alkenyl or aralkyl, Y denotes hydrogen or hydroxyl, Z denotes hydrogen, or Y and Z together denote oxygen and X denotes alkyl, alkenyl, cycloalkyl, aryl, which can be monosubstituted, disubstituted or trisubstituted by alkyl, alkoxy, hydroxyl, halogen, nitro, amino, alkylamino, dialkylamino and/or methylenedioxy, or 3-indolyl, processes for their preparation, agents containing them and their use and new spirocyclic aminoacids as intermediates and a process for their preparation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.