The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 1993
Filed:
Feb. 27, 1991
Hirokazu Tanaka, Ibaraki, JP;
Martin E Cooper, Leicestershire, GB;
David K Donald, Leicestershire, GB;
Fisons plc, , GB;
Abstract
Compounds of formula I, ##STR1## wherein R.sup.1 represents H, OH, protected OH or alkoxy; R.sup.2 represents H; R.sup.3 represents O or (H,OH); R.sup.4 represents methyl, ethyl, propyl or allyl; R.sup.5 represents OH, protected OH or alkoxy; R.sup.6 represents OH; R.sup.7 represents OH, alkoxy or NR.sup.8 R.sup.9 where R.sup.8 and R.sup.9 independently represent H, alkyl or aryl; in addition, R.sup.1 and R.sup.2 may together represent a second bond between the carbon atoms to which they are attached; and R.sup.6 and R.sup.7 may together represent O; and pharmaceutically acceptable salts thereof; are useful inter alia as immunosuppressive agents. The invention also provides the novel compounds of formula I.