C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 498/04 (2006.01) A61K 31/437 (2006.01) A61K 31/4985 (2006.01) A61K 31/5383 (2006.01) A61K 31/542 (2006.01) A61P 25/18 (2006.01) C07D 513/04 (2006.01)
Patent
CA 2152284
Compounds of formula (I), in which X represents a group (a), (b), (c) or (d) wherein R is hydrogen, C1-6 alkyl, phenyl or C7-12 phenalkyl, R1 and R2 each represent hydrogen or together represent an oxo group and R3, R4 and R5 each represent hydrogen or R1 represents hydrogen and two of R2, R3, R4 and R5 together represent the second bond of a double bond joining positions 7 and 8, 8 and 9 or 9 and 10 with the remaining two of R2, R3, R4 and R5 representing hydrogen, the compound optionally being in the form of a salt thereof formed with a physiologically acceptable inorganic or organic acid, an of value for the treatment of anxiety and in the improvement of learning ability and/or the reversal of amnesia.
Boyd Edward Andrew
Costall Brenda
Kelly Mary Elizabeth
Parsons Philip James
British Technology Group Limited
Btg International Limited
Fetherstonhaugh & Co.
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