Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for preparing 6,7,8,9-tetrahydro-10-methylpyrido[1,2-a]indol-9-amines and derivatives thereof useful for the treatment of cognitive impairments

Process for preparing 6,7,8,9-tetrahydro-10-methylpyrido[1,2-a]indol-9-amines and derivatives thereof useful for the treatment of cognitive impairments

US Patent 4665183 · Granted May 12, 1987

Estimated economic value: $22,758,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Methods and devices for modulating excitable tissue of the exiting spinal nerves2014
Chiral phosphorous compounds2011
Derivatives of [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)alkyl] phos2011
Derivatives of [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)alkyl]phosp2011
Preparation of N1-(2'-pyridyl)-1,2-propanediamine sulfamic acid and its use in t2008
Carbamyloxy compounds which inhibit leukocyte adhesion mediated by VLA-42008
Cycloalkyfused indole, benzothiophene, benzofuran and idene derivatives2007
Process for synthesizing beta-lactamase inhibitor intermediates2007
Derivatives of [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)alkyl]phosp2007
Process for making chiral 1,4-disubstituted piperazines2007
Derivatives of [2-(8,9-dioxo-2,6-diazabicyclo[5.2.0]non-1(7)-en-2-yl)alkyl] phos2007
Carbamyloxy compounds which inhibit leukocyte adhesion mediated by VLA-42007