Patent · US Expired

Oxetanones and process for their production

US4983746A · kind A · utility

39Cited by
0References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 8, 1989
Grant dateJan 8, 1991
Priority date
Expiry dateAug 8, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07F7/1804
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The invention is directed to a process for the manufacture of pancreatic lipase-inhibiting oxetanone ethyl esters of the formula ##STR1## wherein X is undecyl or 2Z,5Z-undecadienyl; C.sub.6 is n-hexyl; Y is isobutyl and Z is formyl or Y is carbamoylmethyl and Z is acetyl; which process comprises esterifying the corresponding oxetanone ethanols, or hydrogenating the 3-undecenyl group in corresponding oxetanone ethyl ester starting materials to the undecyl group X, or N-formylating or N-acetylating corresponding primary amines.

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