US Patent
US7365205 — Diamine derivatives
Composition of Matter · Assigned to Daiichi Sankyo Co Ltd · Expires 2027-04-18 · 1y remaining
Vulnerability score
22/100
Ironclad — strong claim type, well-established, deep family
What this patent protects
This patent protects a class of diamine derivatives, specifically compounds represented by the general formula Q1-Q2-T0-N(R1)-Q3-N(R2)-T1-Q4.
USPTO Abstract
A compound represented by the general formula (1): <?in-line-formulae description="In-line Formulae" end="lead"?>Q<SUP>1</SUP>-Q<SUP>2</SUP>-T<SUP>0</SUP>-N(R<SUP>1</SUP>)-Q<SUP>3</SUP>-N(R<SUP>2</SUP>)-T<SUP>1</SUP>-Q<SUP>4</SUP> (1)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein R<SUP>1 </SUP>and R<SUP>2 </SUP>are hydrogen atoms or the like; Q<SUP>1 </SUP>is a saturated or unsaturated, 5- or 6-membered cyclic hydrocarbon group which may be substituted, or the like; Q<SUP>2 </SUP>is a single bond or the like; Q<SUP>3 </SUP>is a group in which Q<SUP>5 </SUP>is an alkylene group having 1 to 8 carbon atoms, or the like; and T<SUP>0 </SUP>and T<SUP>1 </SUP>are carbonyl groups or the like; a salt thereof, a solvate thereof, or an N-oxide thereof. The compound is useful as an agent for preventing and/or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
Track this patent
Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.