Patents by Inventor Eric Keith Baylis

Eric Keith Baylis 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).

  • Dinucleotide and oligonucleotide analogues
    Patent number: 6087490
    Abstract: A compound which is a dinucleotide analogue of formula ##STR1## or a salt thereof, where B.sup.1 and B.sup.2 are each independently a monovalent nucleoside base radical,R.sup.1 is hydrogen or Y.sup.1,R.sup.2 and R.sup.3 are each independently hydrogen, halogen, hydroxy or --OY.sup.2,R.sup.4 is hydrogen, halogen, hydroxy, --OY.sup.3 or R.sup.7,R.sup.5 is hydrogen, halogen or R.sup.8,R.sup.6 is hydrogen, Y.sup.4 or a phosphoramidyl group,Z is a group of formula II, III or IV ##STR2## where R.sup.9 is hydrogen, halogen, hydroxy, --OY.sup.5 or R.sup.13, R.sup.10 is hydrogen, halogen or R.sup.14, R.sup.11 is hydroxy, R.sup.15 or --OR.sup.15 where R.sup.15 is a C.sub.1 to C.sub.10 aliphatic group, a C.sub.3 to C.sub.8 cycloaliphatic group, a C.sub.6 to C.sub.10 aromatic group or a C.sub.7 to C.sub.13 araliphatic group, and R.sup.12 is hydrogen, R.sup.12.sub.a or --OCOR.sup.12.sub.a where R.sup.12.sub.a is a C.sub.1 to C.sub.10 aliphatic group, a C.sub.3 to C.sub.8 cycloaliphatic group, a C.sub.6 to C.sub.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: July 11, 2000
    Assignee: Novartis AG
    Inventors: Anthony David Baxter, Eric Keith Baylis, Stephen Paul Collingwood, Robin Alec Fairhurst, Roger John Taylor
  • Method of synthesizing an organophosphorus compound
    Patent number: 5693799
    Abstract: A compound of formula ##STR1## where R.sup.1 and R.sup.2 are independently a C.sub.1 -C.sub.10 aliphatic radical, or R.sup.1 is a C.sub.1 -C.sub.10 aliphatic radical and R.sup.2 is a C.sub.6 -C.sub.10 aromatic radical, and R.sup.3 is a C.sub.1 -C.sub.8 aliphatic radical, a C.sub.3 -C.sub.8 cycloaliphatic radical, a C.sub.6 -C.sub.15 aromatic radical or a C.sub.7 -C.sub.13 araliphatic radical, provided that R.sup.3 is not methyl when R.sup.1 and R.sup.2 are each methyl, that R.sup.3 is not ethyl when R.sup.1 and R.sup.2 are each methyl and that R.sup.2 is not p-aminophenyl when R.sup.1 is methyl and R.sup.3 is ethyl with an organic compound having at least one group reactive with a P--H bond.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: December 2, 1997
    Assignee: Novartis Corp.
    Inventor: Eric Keith Baylis
  • Oligonucleotide analogues
    Patent number: 5670489
    Abstract: A dinucleotide analogue of formula ##STR1## where B.sup.1 and B.sup.2 are each independently a monovalent nucleoside base radical;R.sup.1 is R.sup.1.sub.a or Z;R.sup.1.sub.a, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen, halogen or hydroxy;R.sup.5 is R.sup.5.sub.a or Z;R.sup.6 is hydrogen or R.sup.6.sub.a ;R.sup.7 is hydrogen, alkyl-N,N-dialkylphosphoramidyl or R.sup.7.sub.a, R.sup.8 is R.sup.8.sub.a or Z, or the indicated R.sup.7 O and R.sup.8 together denote an isopropylidenedioxy group;R.sup.5.sub.a and R.sup.8.sub.a are each independently hydrogen, halogen, hydroxy, --OR.sup.10, --OCOR.sup.10 or silyloxy substituted by three C.sub.1 -C.sub.5 hydrocarbyl groups;R.sup.6.sub.a and R.sup.7.sub.a are each independently a C.sub.1 -C.sub.10 aliphatic radical, a C.sub.6 -C.sub.15 aromatic radical, a C.sub.7 -C.sub.30 araliphatic radical, --COR.sup.11, --SO.sub.2 R.sup.11 or silyl substituted by three C.sub.1 -C.sub.15 hydrocarbyl groups;R.sup.9 is hydrogen, a C.sub.1 -C.sub.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 23, 1997
    Assignee: Novartis Corporation
    Inventors: Anthony David Baxter, Eric Keith Baylis, Stephen Paul Collingwood, Roger John Taylor, Alain De Mesmaeker, Chantal Schmit
  • Hydrazide salts
    Patent number: 3932505
    Abstract: A compound having the general formula ##SPC1##In which R.sup.1 , R.sup.2, R.sup.3 and R.sup.4 may be the same or different and represent hydrogen, a straight or branched chain alkyl radical having 1 to 20 carbon atoms, an aralkyl radical having 7 to 20 carbon atoms which may be substituted by one or more alkyl groups having 1 to 4 carbon atoms, or may be of the type: ##SPC2##Wherein R.sup.5 and R.sup.6 are each a hydrogen atom or a methyl group, and each R represents the others of R.sup.1, R.sup.2, R.sup.3 and R.sup.
    Type: Grant
    Filed: January 4, 1974
    Date of Patent: January 13, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Wilfred Pickles, Eric Keith Baylis