Patents by Inventor Leonard J. Lerner

Leonard J. Lerner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4379155
    Abstract: New 3,5-disubstituted 1H-1,2,4-triazoles of formula I ##STR1## wherein: R is selected from hydrogen, (C.sub.1-4)alkyl, (C.sub.1-4)alkoxy, allyloxy, propargyloxy, trifluoromethyl, phenyl, fluoro, chloro and dimethylamino;R.sub.1 represents a (C.sub.1-4)alkyl group;R.sub.2 is selected from hydrogen, fluoro, chloro, (C.sub.1-4)alkyl, methoxy and ethoxy;R.sub.3 is selected from hydrogen, fluoro, chloro, (C.sub.1-4)alkyl and (C.sub.1-4)alkoxy;R and R.sub.3 taken together represent a methylenedioxy group; with the proviso that, when R, R.sub.2 and R.sub.3 simultaneously represent hydrogen, R.sub.1 cannot be methyl;with the further proviso that, when R.sub.2 and one of R and R.sub.3 simultaneously represent hydrogen, R.sub.1 and the other of R and R.sub.3 cannot simultaneously represent methyl; and with the still further proviso that compounds of formula I are excluded wherein R.sub.2 is hydrogen and one of R and R.sub.3 is simultaneously a 2-positioned alkyl group and the other of R and R.sub.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: April 5, 1983
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Amedeo Omodei-Sale, Pietro Consonni, Giulio Galliani, Leonard J. Lerner
  • Patent number: 4075342
    Abstract: Novel tricyclic compounds containing two ring notrogen atoms and represented by the following formula I ##STR1## wherein: A is one of the groups --CH.sub.2 --; --CH.dbd.CH--; and --CH.sub.2 --CH.sub.2 --;R is hydrogen, lower alkyl, lower alkoxy, lower alkenyloxy, lower alkynyloxy, cyclo(C.sub.3-6 alkyl)oxy, hydroxy, benzyloxy, halo, sulfamoyl, cyano, trifluoromethyl or nitro; R.sub.1 is hydrogen, lower alkoxy or halo; or R and R.sub.1 taken together are methylenedioxy; the sequence ##STR2## is one of the following moieties: ##STR3## WHEREIN R.sub.2 is hydrogen or lower alkyl; R.sub.3 is hydrogen or lower alkyl; R.sub.4 is hydrogen, methyl, carboxy, carbo(lower alkoxy), carbamyl, mono- or di-(lower alkyl) carbamyl or hydroxymethyl; provided that when the sequence ##STR4## is one of the moieties a) and b) wherein R.sub.2 is hydrogen or lower alkyl, A is not --CH.dbd.CH--; when the sequence ##STR5## is one of the moieties (a) and (b) wherein R.sub.2 is hydrogen, A is not --CH.sub.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: February 21, 1978
    Assignee: Gruppo Lepetit, S.p.A.
    Inventors: Amedeo Omodie Sale, Emilio Toia, Giulio Galliani, Leonard J. Lerner
  • Patent number: 4024149
    Abstract: New heterocyclic compounds represented by the following formula: ##STR1## wherein: R and R.sub.1 are independently selected from hydrogen, hydroxy, (C.sub.1-4)alkyl, (C.sub.1-4)alkoxy, (C.sub.3-5)alkenyloxy, (C.sub.3-5)alkynyloxy, (C.sub.3-6)cycloalkyloxy, or halo or taken together represent a methylenedioxy group; the symbols W and A are defined as follows:1. W is the nitrogen atom and A is the group ##STR2## in which the carbon atom bearing the radical R.sub.2 is linked to the benzene ring and R.sub.2 is hydrogen, hydroxy, (C.sub.1-4)alkoxy or (C.sub.2-4)aliphatic acyloxy;2. W is the group =CH-- and A is --CH.sub.2 --, --CH.sub.2 --CH.sub.2 -- or --CH=CH--.The compounds have antireproductive utility.
    Type: Grant
    Filed: October 22, 1975
    Date of Patent: May 17, 1977
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Giorgio Winters, Gianfranco Odasso, Giulio Galliani, Leonard J. Lerner
  • Patent number: 4007276
    Abstract: New s-triazolo[5,1-a]isoindole derivatives of following formula I ##STR1## wherein R is selected from hydrogen, amino, lower alkyl amino, di-lower alkyl amino, acylamino, diacylamino, benzoylamino, ureido, thioureido, carbethoxythioureido, benzoylthioureido, sulfhydryl, lower alkyl, trifluoromethyl, phenyl, substituted phenyl, pyridyl, methylpyridyl and dimethylpyridyl; and R.sub.1 and R.sub.2 each independently represents hydrogen, chloro or lower alkoxy.A process for their manufacture which comprises the reaction of 2-aminophthalimidine with a reagent R-Z wherein R has the same meaning as above, and Z represents one of the following groups: ##STR2## wherein R.sub.3 is C.sub.1 -C.sub.4 alkyl. The compounds and some of the intermediates of the process are useful as antiinflammatories, analgesics, CNS depressants, antimicrobials and anti-fertility agents.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: February 8, 1977
    Assignee: Gruppo Lepetit, S.p.A.
    Inventors: Amedeo Omodei Sale, Pietro Consonni, Leonard J. Lerner