136232-95-6Relevant articles and documents
Preparation of 6,14-Ethenomorphinan Derivatives
Marton, J.,Hosztafi, S.,Berenyi, S.,Simon, C.,Makleit, S.
, p. 1229 - 1240 (1994)
Dihydronorthevinone (2b) was prepared from dihydrothevinone (2a) with diethyl azodicarboxylate (DEAD) and transformed into a number of new N-substituted dihydronorthevinone derivatives (2c-2g).Grignard reactions of the new compounds with methylmagnesium iodide and tert-butyl-magnesium chloride were studied.O-Demethylation of 3a-3j resulted in the corresponding N-substituted buprenorphine and diprenorphine analogs 4a-4j. - Keywords: Buprenorphine; Diprenorphine; Dihydronorthevinone; N-Substituted Dihydronorthevinone; Grignard-reactions; Morphine alkaloids; O-Demethylation with DIBAL.
DEUTERATED COMPOUND AND MEDICAL USE THEREOF
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, (2020/01/12)
The present invention relates to a compound represented by formula I and a non-toxic pharmaceutically acceptable salt thereof. In formula (I), R1 is H, CH3 or deuterated methyl (CD3); R2 is CH3 or CH2CH3; R3, R4 and R5 are each independently H or deuterium (D); when R1 is H or CH3, at least one of R3, R4 and R5 is D.
PROCESS FOR THE PREPARATION OF OPIOID COMPOUNDS
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, (2015/11/27)
The present invention is directed to a process for the preparation of opioid compounds such as buprenorphine, naltrexone, naloxone, nalbuphone, nalbuphine, and the like.