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US3714206A Expired / Lapsed US ⏱️ 0.0 years remaining

Benzo-2,3,1-diazaborines

Assignee: Grünenthal GmbH
•
Filing: 1968-12-02
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Granted: 1973-01-30
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Expires: 1988-12-02
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Abstract

Abstract BORON CONTAINING HETEROCYCLIC COMPOUNDS OF THE BENZO-, NAPHTHO-, OR THIENO-2,3,1-DIAZOBABORINE TYPE WHICH CARRY IN 1-POSITION ATTACHED TO THE BORON ATOM A HYDROXYL GROUP, THE HYDROGEN ATOM OF WHICH MAY BE REPLACED BY A CATION, OR A BENZO-, NAPHTHO-, OR THIENO-2,3,1-DIAZABORINE GROUP, AND IN 2-POSITION A SULFO GROUP ATTACHED TO A SUB- STITUTED OR UNSUBSTITUTED AROMATIC OR HETEROCYCLIC RADICAL. THE PHENYLENE, NAPHTHYLENE, OR THIENYLENE RINGS THEREIN MAY ALSO BE SUBSTITUTED. EXAMPLES ARE 1-HYDROXY-2-(P-TOLYL SULFONYL) BENZO-2,3,1-DIAZABORINE; 1-HYDROXY-2-(2''4''-DI METHYL PHENYL SYLFONYL) BENZO-2,3,1-DIAZABRBORINE; 1-HYDROX - 2 - )P-AMINO PHENYL SULFONYL) BENZO - 2,3,1-DIAZABORINE; 1-HYDROXY-2-(THIENYL-2''-SULFONYL) BENZO-2,3,1DIAZORORINE; 1-HYDROXY-2-(2''-CHLORO-4''-AMINO PHENYL SULFONYL) BENZO-2,3,1-DIAZABORINE, AND ITS 4''-ACETAMINO DERIVATIVE AND ITS SODIUM SALT; 1-HYDROXY-2-(2''-CHLORO-4''(B-CARBOXY ETHYLENE CARBOXYAMINO) PHENYL SULFONYL) BENZO-2,3,1-DIAZABORINE AND ITS SODIUM SALT; 1-HYDROX-2(2''-CHLORO-4''-(Y-CARBOXY PROPYLENE CARBOXYAMIDO) PHENYL SULFONYL)BENZO-2,3,1-DIAZOBORINE AND ITS SODIUM SALT. THE NES COMPOUNDS ARE USEFUL ANTIMICROBIAL AGENTS AND ARE EXPACIALLY EFFECTIVE AGAINSTGRAM-NEGATIVE BACTERIA, TRYPANOSOMAS, AND PLASMODIA. THEY PROCESS CYTOSTATIC, ANTIPHOGISTIC, AND OTHER PHARMACOLOGICAL ACTIVITIES. SOME OF THEM ARE GOOD DIURETIC AGENTS. THEY HAVE A PRONOUNCED SYNERGISTIC EFFECT ON ANTIBIOTICS. THE COMPOUNDS ARE PREPARED BY CONDENSING O-FORMYL PHENYL BORIC ACIDS, 2-FORMYL THIENYL-(3)-BORIC ACID, 3FORMYL THIENYL-(4)-BORIC ACID, 1-FORMYL NAPHTHALENE-(2)BORIC ACID, 2-FORMYL NAPHTHALENE-(1)- OR -(3)-BORIC ACIDS, AND OTHERS, OR DERIVATIVES THEREOF WITH CORRESPONDING SULFONIC ACID HYDRAZIDES.

Inventors

  • 👤 H Huemer
  • 👤 S Herrling
  • 👤 H Muckter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:54
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/025

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-30 1976-07-31 1977-01-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-30 1980-07-31 1981-01-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-30 1984-07-31 1985-01-30 $7700.00 Window Closed / Lapsed

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