Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-08-17
1993-01-12
Ivy, C. Warren
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
540461, A61K 3133, C07D22508
Patent
active
051790874
ABSTRACT:
There are described compounds of formula I, ##STR1## wherein R.sup.1 represents H or OH; R.sup.2 represents H; in addition, R.sup.1 and R.sup.2 may together represent a second carbon-carbon bond between the carbon atoms to which they are attached; R.sup.3 represents OH or OCH.sub.3 ; X represents O or (H,OH); and Y represents O or N--OR.sup.4, in which R.sup.4 represents H or alkyl C.sub.1-6 ; provided that when R.sup.1 is OH, R.sup.2 is H and X is O, then Y does not represent O.
Processes for their production and compositions containing them, eg. for use as immunosuppressive agents, are also described.
REFERENCES:
patent: 4275149 (1981-06-01), Litman et al.
patent: 4894366 (1990-01-01), Okuhara et al.
patent: 4929611 (1990-05-01), Okuhara et al.
patent: 4956352 (1990-09-01), Okahara et al.
Cooper Martin E.
Donald David K.
Furber Mark
Hardern David N.
Chang Celia
Fisons plc
Ivy C. Warren
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