C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/206
C07D 457/00 (2006.01) C07D 457/04 (2006.01) C07D 457/12 (2006.01)
Patent
CA 1291120
Abstract of the Disclosure Ergoline derivatives of general Formula I Image wherein C8 Image C9 and C9 Image C10 are both CC-single bonds or one is a C=C-double bond, R6 is C1-4 alkyl, R8 is methyl, hydroxymethyl, carbonylmethoxy, ureido or N,N-diethylureido, each in the .alpha.- or .beta.-posi- tion, and R is hydrogen or nitro, are prepared by dehydrogenation of corresponding 2,3-dihydroergoline derivatives using an electrophilic reagent in an apolar solvent and a base.
497512
Biere Helmut
Haffer Gregor
Huth Andreas
Sauer Gerhard
Biere Helmut
Haffer Gregor
Huth Andreas
Marks & Clerk
Sauer Gerhard
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