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US3970643A Expired / Lapsed US ⏱️ 0.0 years remaining

5"-Amino-3',5"-dideoxybutirosin A and derivatives

Assignee: Parke Davis and Co LLC
•
Filing: 1975-04-17
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Granted: 1976-07-20
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Expires: 1995-04-17
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Abstract

Abstract O-2,6-diamino-2,3,6-trideoxy-α-D-ribo-hexo-pyranosyl-(1→4)-O-[5-amino-5-deoxy-β-D-xylofuranosyl-(1→5)]-N 1 -[(S)-4-amino-2-hydroxy-1-oxobutyl]-2-deoxystreptamine), also named 5"-amino-3',5"-dideoxybutirosin A and acid addition salts of said compounds. These compounds exhibit a wide spectrum of antibacterial activity. The above compounds can be produced from O-2,6-dideoxy-2,6-bis(Z-amino)-α-D-glucopyranosyl-(1→4)-O-[2,3-di-O-acetyl-5-deoxy-5-(Z-amino)-β-D-xylofuranosyl-(1→ 5)]-6-O-acetyl-N 1 -[(S)-2-acetyloxy-1-oxo-4-(Z-amino)butyl]-2-deoxy-N.sup. 3 -streptamine, also named protected 5"-amino-deoxybutirosin A by treating said compound with trifluoromethanesulfonic anhydride and pyridine to yield the 3'-O-(trifluoromethanesulfonyl) compound. The product is reacted with the sodium salt of an arylmercaptan and the resulting 3'-arylthio compound is purified and treated with ammonia, thus deprotecting the four hydroxy groups. Lastly, the five amino groups are deprotected and the arylthio group is removed by a reductive cleavage.

Inventors

  • 👤 Peter Wing Kee Woo
  • 👤 Theodore Herbert Haskell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 23:03
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/226; C07H15/228; C07H15/23; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 17 words
A member of the class consisting of O-2,6-diamino-2,3,6-trideoxy-α-D-ribo-hexopyranosyl-(1→4)-O-[5-amino-5-deoxy-β-D-xylofuranosyl-(1→5)]-N 1 -[(S)-4-amino-2-hydroxy-1-oxobutyl]-2-deoxystreptamine and pharmaceutically acceptable acid addition salts thereof.
Claim 2
Dependent Claim 17 words
A member of the class consisting of O-2,6-diamino-2,3,6-trideoxy-α-D-ribo-hexopyranosyl-(1→4)-O-[5-amino-5-deoxy-β-D-xylofuranosyl-(1→5)]-N 1 -[(S)-4-amino-2-hydroxy-1-oxobutyl]-2-deoxystreptamine and pharmaceutically acceptable acid addition salts thereof.
Claim 3
Dependent Claim 11 words
The compound of claim 1 having the name O-2,6-diamino-2,3,6-trideoxy-α-D-ribo-hexopyranosyl-(1→4)-O-[5-amino-5-deoxy-β-D-xylofuranosyl-(1→5)]-N 1 -[(S)-4-amino-2-hydroxy-1-oxobutyl]-2-deoxystreptamine.

References Cited (Backward Citations)

US3828021A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-07-20 1980-01-19 1980-07-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-07-20 1984-01-19 1984-07-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-07-20 1988-01-19 1988-07-20 $7700.00 Window Closed / Lapsed

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