Patents by Inventor Robert Gibson Roy

Robert Gibson Roy 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).

  • Alkylated pregnanes and process for obtaining same
    Patent number: 4031075
    Abstract: The invention relates to novel 21-alkylated steroids of the pregnane series having the formula: ##STR1## WHEREIN X = H or halogen;Y = h.sub.2, h(oh), h(oacyl), O or H(halogen);R.sub.1 = an alkyl group having 1-4 C-atoms;R.sub.2 = r.sub.1 or H;R.sub.3 = h, ch.sub.3 or halogen;Z = oh, oalkyl or Oacyl or form together with R.sub.4 a group as indicated below;Q = (when C.sub.15 -C.sub.16 is saturated) alkylidene having 1-4 C-atoms or (.beta.H) (.alpha.R.sub.4), in which R.sub.4 together with Z is alkylidenedioxy having 3-5 C-atoms, alkylidene having 1-4 C-atoms, aralkylidene having 7-8 C-atoms, alkylene of the formula ##STR2## wherein A = H or halogen and B = H, halogen, alkyl (1-4 C), haloalkyl, alkoxy or phenyl, or a [17.alpha.,16.alpha.-d]- or [16.alpha.,17.alpha.-d]-oxazolino-group, wherein the C-atom in 2'-position may be substituted by alkyl (1-4 C) or phenyl; or Q = (when C.sub.15 -C.sub.16 is unsaturated) methyl or halomethyl, and a process for obtaining same.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: June 21, 1977
    Assignee: Akzona Incorporated
    Inventors: Gilbert Frederick Woods, Robert Thomas Logan, George McGarry, Robert Gibson Roy