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Priority to PT6745277ApriorityCriticalpatent/PT67452B/en
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10-Bromovincamine (I) and its acid addn. salts and 10-bormo-epivincamine are new, in optically active or racemic form. (I) is a psychostimulant and agent for increasing vigilance. It may be used for treating cerebral insuficciency at a daily dose of 10-50 mg. In an example, (3S, 14S, 16S)-(I) was prepd. from vincadifformine via the novel intermediates 15-bromo-vincadifformine and methyl 5-bromo-1,2-didehydro-3-hydroxy-aspidospermidine-3-carboxylate 9-oxide by bromination, reaction with m-chloroperbenzoic acid and heating in presence of PPh3 and acetic acid.
PT6745277A1977-12-231977-12-23
PROCESS FOR THE PREPARATION OF NEW ORGANIC COMPOUNDS WITH PHARMACEUTICAL EFFECT
PT67452B
(en)
Electro-optical device for monitoring instantaneous singlet oxygen concentration produced during the treatment of cancer by means of photochemotherapy.