Patents by Inventor Sun-Shine Yuan

Sun-Shine Yuan 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: 4174450
    Abstract: This invention deals with chemical intermediates having the formula ##STR1## wherein R.sub.1 and R.sub.2 together with the carbon atom to which they are attached form a single hetero atom member selected from the group consisting of a five-to seven-membered heterocycle containing one hetero-N-atom and a N-substituted five-to seven-membered heterocycle containing an hetero-N-atom whose substituent is C.sub.1 -C.sub.2 alkyl. These compounds are useful in the synthesis of compounds having a variety of uses as pharmaceuticals.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: November 13, 1979
    Assignee: INTERx Research Corporation
    Inventors: Nicolae S. Bodor, Sun-Shine Yuan
  • Patent number: 4158005
    Abstract: Optically and therapeutically active compounds of the formula: ##STR1## wherein R represents a member selected from the group consisting of a straight or branched alkyl group of from one to twenty carbon atoms (C.sub.1 -C.sub.5 being preferred), an ethoxycarbonyl group, a benzyloxycarbonyl group, a phenyl group, an ##STR2## WHEREIN R is as defined above and R.sub.3 is a member selected from the group consisting of a hydrogen atom, a methyl group and a phenyl group, and a 2-, 3-, or 4-pyridyl group, or the HX salts thereof, wherein X represents a pharmaceutically acceptable acid addition salt anion, are prepared optically active m-hydroxy-.alpha.-[methylamino)methyl]benzyl alcohol (phenylephrine).The compounds prepared by the process of this invention find therapeutic application to warm-blooded animals (e.g., humans) in the management of asthma, nasal congestion and as decongestants, vasoconstrictors, mydriatic agents, and anti-glaucomatous agents in the practice of ophthalmology.
    Type: Grant
    Filed: May 9, 1977
    Date of Patent: June 12, 1979
    Assignee: Interx Research Corporation
    Inventors: Nicolae S. Bodor, Sun-Shine Yuan
  • Patent number: 4088783
    Abstract: Compounds of the formula: ##STR1## wherein R represents a member selected from the group consisting of a straight or branched alkyl group of from one to twenty carbon atoms (C.sub.1 -C.sub.5 being preferred), an ethoxycarbonyl group, a benzyloxycarbonyl group, a phenyl group, an ##STR2## WHEREIN R is as defined above and R.sub.3 is a member selected from the group consisting of a hydrogen atom, a methyl group and a phenyl group, and a 2-, 3-, or 4-pyridyl group, or the HX salts thereof, wherein X represents a pharmaceutically acceptable acid addition salt anion, are extremely valuable in the treatment of conditions responsive to sympathomimetic agents.The compounds of this invention find therapeutic application to warm-blooded animals (e.g., humans) in the management of asthma, nasal congestion and as decongestants, vasoconstrictors, mydriatic agents, and anti-glaucomatous agents in the practice of opthalmology.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: May 9, 1978
    Assignee: INTERx Research Corporation
    Inventors: Nicolae S. Bodor, Sun-Shine Yuan
  • Patent number: 4035405
    Abstract: Compounds of the formula: ##STR1## wherein R represents a straight or branched C.sub.1 -C.sub.5 alkyl group; and R.sub.1 in each occurrence represents an acyl member which is alkanoyl having 1-22 carbon atoms, alkenoyl having one or two double bonds and having 4-22 carbon atoms, ##STR2## having a total of 4-10 carbon atoms of which 3-7 are ring carbon atoms in cycloalkyl and wherein n is zero, one, or two, phenoxyacetyl, naphthalenecarbonyl, pyridinecarbonyl, ##STR3## wherein n is zero, one or two and phenyl is unsubstituted or is substituted by 1-3 alkyl having 1-4 carbon atoms, alkoxy having 1-4 carbon atoms, halo, trifluoromethyl, dialkylamino having 2-8 carbon atoms, or alkanoylamino having 1-6 carbon atoms groups; are prepared in substantial purity and yield, using as the chloride ion donor, cesium chloride (CsCl).The compounds prepared by the process claimed herein exhibit sympathomimetic activity and are thus useful in eliciting sympathomimetic responses in warm-blooded animals, e.g.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: July 12, 1977
    Assignee: Interx Research Corporation
    Inventors: Nicolae S. Bodor, Sun-Shine Yuan
  • Patent number: 4028368
    Abstract: Optically and therapeutically active compounds of the formula: ##STR1## wherein R represents a member selected from the group consisting of a straight or branched alkyl group of from one to twenty carbon atoms (C.sub.1 -C.sub.5 being preferred), an ethoxycarbonyl group, a benzyloxycarbonyl group, a phenyl group, an ##STR2## group, wherein R is as defined above and R.sub.3 is a member selected from the group consisting of a hydrogen atom, a methyl group and a phenyl group, and a 2-, 3-, or 4-pyridyl group, or the HX salts thereof, wherein X represents a pharmaceutically acceptable acid addition salt anion, are prepared using optically active m-hydroxy-.alpha.-[(methylamino)methyl]benzyl alcohol (phenylephrine).
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: June 7, 1977
    Assignee: Interx Research Corporation
    Inventors: Nicolae S. Bodor, Sun-Shine Yuan
  • Patent number: 3966749
    Abstract: Optically and therapeutically active compounds of the formula: ##SPC1##Wherein R represents a member selected from the group consisting of a straight or branched alkyl group of from one to twenty carbon atoms (C.sub.1 -C.sub.5 being preferred), an ethoxycarbonyl group, a benzyloxycarbonyl group, a phenyl group, an ##EQU1## group, wherein R is as defined above and R.sub.3 is a member selected from the group consisting of a hydrogen atom, a methyl group and a phenyl group, and a 2-, 3-, or 4-pyridyl group, or the HX salts thereof, wherein X represents a pharmaceutically acceptable acid addition salt anion, are prepared using optically active m-hydroxy-.alpha.-[(methylamino)-methyl]benzyl alcohol (phenylephrine).The compounds prepared by the process of this invention find therapeutic applicaton to warm-blooded animals (e.g., humans) in the management of asthma, nasal congestion and as decongestants, vasoconstrictors, mydriatic agents, and anti-glaucomatous agents in the practice of opthalmology.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: June 29, 1976
    Assignee: Interx Research Corporation
    Inventors: Nicolae S. Bodor, Sun-Shine Yuan