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US4618669A Expired / Lapsed US ⏱️ 0.0 years remaining

S-(carbamoyl-phenylselenyl) derivatives of glutathione and of aminomercaptocarboxylic acids

Assignee: A NATTERMANN & CIE NATTERMANNALLEE 1 D-5000 KOLN 30 GERMANY GmbH
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Filing: 1985-06-14
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Granted: 1986-10-21
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Expires: 2005-06-14
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Abstract

Abstract The present invention relates to new S-(carbamoylphenylselenyl) derivatives of glutathione and of α-aminomercaptocarboxylic acids of the general formula (I) ##STR1##

Inventors

  • 👤 Norbert Dereu
  • 👤 Andre Welter
  • 👤 Albrecht Wendel
  • 👤 Sigurd Leyck
  • 👤 Michael Parnham
  • 👤 Erich Graf
  • 👤 Helmut Sies
  • 👤 Hans Betzing
  • 👤 Hartmut Fischer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:12
CPC Classifications
C; C07; C07C; C07C391/00; C07C391/02

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 155 words
S-(Carbamoyl-phenylselenyl) derivatives of glutathione and of α-aminomercaptocarboxylic acids according to the general formula (I) ##STR7## wherein R 1 , R 2 , R 3 and R 4 , represent members selected from the group consisting of hydrogen, halogen, C 1-4 -alkyl, C 1-4 -alkoxy, trifluoromethyl, nitro, cyano, hydroxy, carboxy and C 1-4 -alkoxycarbonyl, n is zero or an integer from 1 to 4 and A is a member selected from the group consisting of the glutathione radical, the α-amino acid radicals, the α-amino acid radicals wherein the carboxylic group and the amino group are unsubstituted the α-amino acid radicals wherein the carboxylic group is esterified with a C 1-3 -alcohol and the amino group is unsubstituted, the α-amino acid radicals wherein the amino group is acylated and the carboxylic group is unsubstituted, and the α-amino acid radicals wherein both the carboxylic group is esterified with a C 1-3 -alcohol and the amino group is acylate
Claim 2
Dependent Claim 155 words
S-(Carbamoyl-phenylselenyl) derivatives of glutathione and of α-aminomercaptocarboxylic acids according to the general formula (I) ##STR7## wherein R 1 , R 2 , R 3 and R 4 , represent members selected from the group consisting of hydrogen, halogen, C 1-4 -alkyl, C 1-4 -alkoxy, trifluoromethyl, nitro, cyano, hydroxy, carboxy and C 1-4 -alkoxycarbonyl, n is zero or an integer from 1 to 4 and A is a member selected from the group consisting of the glutathione radical, the α-amino acid radicals, the α-amino acid radicals wherein the carboxylic group and the amino group are unsubstituted the α-amino acid radicals wherein the carboxylic group is esterified with a C 1-3 -alcohol and the amino group is unsubstituted, the α-amino acid radicals wherein the amino group is acylated and the carboxylic group is unsubstituted, and the α-amino acid radicals wherein both the carboxylic group is esterified with a C 1-3 -alcohol and the amino group is acylate
Claim 3
Dependent Claim 62 words
S-(Carbamoyl-phenylselenyl) derivatives of L-glutathione according to formu-a (I) in claim 1, wherein R 1 and R 2 are members selected from the group consting of hydrogen, fluorine, chlorine, methyl, methoxy, hydroxy, .trifluoromethyl and nitro, R 3 and R 4 are members selected from the group consisting of hydrogen, fluorine, chlorine, methoxy and hydroxy, n is zero and A represents the L-glutathione radical.
Claim 4
Dependent Claim 70 words
S-(Carbamoyl-phenylselenyl) derivatives of L-cysteine according to formula (I) of claim 1, wherein R 1 and R 2 are members selected from the group consisting of hydrogen, fluorine, chlorine, methyl, methoxy, hydroxy, trifluoromethyl and nitro, R 3 and R 4 are members selected from the group consisting of hydrogen, fluorine, chlorine, methyl, methoxy and hydroxy, n is zero or an integer from 1 to 4 and A represents the L-cysteine radical.

References Cited (Backward Citations)

US4352799A Cited
US4418069A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-10-20 1990-04-21 1990-10-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-10-20 1994-04-21 1994-10-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-10-20 1998-04-21 1998-10-21 $7700.00 Window Closed / Lapsed

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