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US5132453A Expired / Lapsed US ⏱️ 0.0 years remaining

N6 -(hydrazinoiminomethyl)lysine and method of inhibiting nitric oxide formation in body

Assignee: Cornell Research Foundation Inc
•
Filing: 1991-03-22
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Granted: 1992-07-21
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Expires: 2011-03-22
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Abstract

Abstract Physiologically active N 6 -(hydrazinoiminomethyl)lysine or pharmaceutically acceptable acid addition salt thereof is administered in a nitric oxide sythesis inhibiting amount to a subject in need of such inhibition (e.g., a subject with low blood pressure, e.g., due to sepsis or to therapeutic administration of cytokines, or needing immunosuppressive effect) or is added to a medium containing isolated organs, intact cells, cell homogenates or tissue homogenates in an amount sufficient to inhibit nitric oxide formation to elucide or control the biosynthesis, metabolism or physiological role of nitric oxide. Compared to known nitric oxide synthesis inhibitors, N 6 -(hydrazinoiminomethyl)lysine and its acid addition salts show a greater relative activity toward inducible isoform of nitric oxide synthase than toward constitutive isoform of nitric oxide synthase. N 6 -(hydrazinoiminomethyl)lysine and its pharmaceutically acceptable acid addition salts are substantially less toxic than are N G -amionoarginine and its pharmaceutically acceptable acid addition salts.

Inventors

  • 👤 Owen W. Griffith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 04:12
CPC Classifications
C; C07; C07C; C07C281/00; C07C281/16; A; A61; A61P; A61P31/00; A61P31/04; A61P37/00; A61P37/02; A61P37/06; A61P43/00

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 13 words
N 6 -(hydrazinoiminomethyl)lysine containing L-enantiomer, or a pharmaceutically acceptable acid addition salt thereof.
Claim 2
Dependent Claim 13 words
N 6 -(hydrazinoiminomethyl)lysine containing L-enantiomer, or a pharmaceutically acceptable acid addition salt thereof.
Claim 3
Dependent Claim 15 words
The compound of claim 1 which is monohydrochloride acid addition salt of N 6 -(hydrazinoiminomethyl)lysine.
Claim 4
Dependent Claim 16 words
The compound of claim 1 containing from 50% to 100% L-enantiomer with any remainder being D-enantiomer.
Claim 5
Dependent Claim 9 words
The compound of claim 3 which is 100% L-enantiomer.
Claim 6
Dependent Claim 12 words
The compound of claim 3 which is 50% L-enamtiomer and 50% D-enantiomer.

References Cited (Backward Citations)

US4282217A Cited
US4698442A Cited
US5028627A Cited
US5059712A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-07-21 1996-01-20 1996-07-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-07-21 2000-01-20 2000-07-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-07-21 2004-01-20 2004-07-21 $7700.00 Window Closed / Lapsed

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