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US4335043A Expired / Lapsed US ⏱️ 0.0 years remaining

Substituted N-methylene derivatives of thienamycin

Assignee: Merck and Co Inc
•
Filing: 1979-10-11
•
Granted: 1982-06-15
•
Expires: 1999-10-11
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Abstract

Abstract Disclosed are substituted N-methylene derivatives of thienamycin which may be represented by the following structural formula: <IMAGE> wherein X and Y are selected from the group consisting of hydrogen, R, OR, SR, and NR1R2 wherein, inter alia, R is substituted or unsubstituted: alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heteroaryl, heteroaralkyl, heterocyclyl, and heterocyclylalkyl; R1 and R2 are hydrogen or R. Such compounds and their pharmaceutically acceptable salt, ether, ester and amide derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds; pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.

Inventors

  • 👤 Burton G. Christensen
  • 👤 William J. Leanza
  • 👤 Kenneth J. Wildonger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 10:59
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10; C07D; C07D205/00; C07D205/02; C07D205/06; C07D205/08

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 126 words
The compound having the following structure ##STR235## wherein R 1 and R 2 are independently selected from the group consisting of: hydrogen, substituted and unsubstituted: alkyl having 1-6 carbon atoms; alkenyl having 3-6 carbon atoms; cycloalkyl, cycloalkylalkyl, cycloalkenyl, and cycloalkenylalkyl having 3-6, 4-7, 4-6 and 4-7 carbon atoms, respectively; nitro; amino; mono- or di-alkylamino, wherein the alkyl moieties each comprises 1-6 carbon atoms; or benzyl, thienylalkyl, furylalkyl or pyridylalkyl, wherein alkyl is 1-3 carbon atoms; wherein the ring or chain substituent or substituents relative to the definition of R 1 and R 2 are mono-substituents or disubstituents selected from the group consisting of chloro, fluoro, hydroxyl, alkoxyl having 1-3 carbon atoms, dialkylamino having 1-3 carbon atoms in each alkyl moiety, and alkylthio having 1-3 carbon atoms.
Claim 2
Dependent Claim 126 words
The compound having the following structure ##STR235## wherein R 1 and R 2 are independently selected from the group consisting of: hydrogen, substituted and unsubstituted: alkyl having 1-6 carbon atoms; alkenyl having 3-6 carbon atoms; cycloalkyl, cycloalkylalkyl, cycloalkenyl, and cycloalkenylalkyl having 3-6, 4-7, 4-6 and 4-7 carbon atoms, respectively; nitro; amino; mono- or di-alkylamino, wherein the alkyl moieties each comprises 1-6 carbon atoms; or benzyl, thienylalkyl, furylalkyl or pyridylalkyl, wherein alkyl is 1-3 carbon atoms; wherein the ring or chain substituent or substituents relative to the definition of R 1 and R 2 are mono-substituents or disubstituents selected from the group consisting of chloro, fluoro, hydroxyl, alkoxyl having 1-3 carbon atoms, dialkylamino having 1-3 carbon atoms in each alkyl moiety, and alkylthio having 1-3 carbon atoms.
Claim 3
Dependent Claim 26 words
The compound according to claim 1 wherein: R 1 and R 2 are independently selected from the group consisting of: hydrogen; alkyl; alkenyl; nitro; and amino.
Claim 4
Dependent Claim 8 words
The compound having the following structure ##STR236## .
Claim 5
Dependent Claim 8 words
The compound having the following structure ##STR236## .

References Cited (Backward Citations)

BE848545A Cited
US4172144A Cited
US4232030A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-06-14 1985-12-14 1986-06-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-06-14 1989-12-14 1990-06-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-06-14 1993-12-14 1994-06-15 $7700.00 Window Closed / Lapsed

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