Patent US3953692A successfully refreshed from Google Patents.
Patent BE895712A successfully refreshed from Google Patents.
← Back to Patent Explorer
BE895712A Expired / Lapsed BE ⏱️ 0.0 years remaining

BENZO-1,3-THIAZINE-1,1-DIXOYDE DERIVATIVES, THEIR PREPARATION AND THEIR USE

Assignee: Chiesi Farma Spa
•
Filing: 1983-01-26
•
Granted: —
•
Expires: 2003-01-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Esters of 4-hydroxy-2-alkyl-3-aminocarboyl-2H-1,2-thiazine-1,1-dioxide having formula (I) <CHEM> where R stands for lower alkyl C1-C4; R1 stands for a linear or a branched alkyl bearing from 1 to 5 atoms of carbon and preferably ter-butyl; Ar stands for an aromatic or heteroaromatic residue bearing from 1 to 3 etheroatoms such as O, S, N, and preferably the residues 2-pyridyl, 2-thiazolyl; and their addition salts with pharmaceutically acceptable acids are endowed with a therapeutic index higher the one of the parent, not esterified compounds.

Inventors

  • 👤 P Chiesi
  • 👤 F Villani

Bibliographic Details

Application Number —
Jurisdiction BE
Data Source google_patents
Last Synchronized 2026-11-04 22:02
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/04; C07D275/06; C07D417/00; C07D417/02; C07D417/12

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag