摘要:
Oxycodone is manufactured in high yields and with a high purity using a composition including a thebaine component into 14-hydroxycodeinone and then reduction of 14-hydroxycodeinone to oxycodone.
摘要:
Oxycodone is manufactured in high yields and with a high purity using codeine or a salt of codeine as the starting material. The manufacturing process involves the following steps: (a) codeine or a codeine salt (e.g., codeine phosphate) is converted into the intermediate N-carboalkoxy- or N-carboaryloxynorcodeine, (b) the intermediate N-carboalkoxy- or N-carboaryloxynorcodeine resulting from step (a) is oxidized to yield the intermediate N-carboalkoxy- or N-carboaryloxynorcodeinone; (c) the intermediate N-carboalkoxy- or N-carboaryloxynorcodeinone resulting from step (b) is enolized with a base and the resultant enolate is thereafter methylated to yield the intermediate N-carboalkoxy- or N-carboaryloxynorthebaine; (d) the intermediate N-carboalkoxy- or N-carboaryloxynorthebaine resulting from step (c) is reduce to yield thebaine; (e) the thebaine resulting from step (d) is oxidized to yield the intermediate 14-hydroxycodeinone; and (f) the intermediate 14-hydroxycodeinone resulting from step (e) is hydrogenated to yield oxycodone.
摘要:
Thebaine is manufactured in high yields and with a high purity using codeine or a salt of codeine as the starting material. The manufacturing process involves the following steps: (a) codeine or a codeine salt (e.g., codeine phosphate) is converted into the intermediate N-carboalkoxy- or N-carboaryloxynorcodeine; (b) the intermediate N-carboalkoxy- or N-carboaryloxynorcodeine resulting from step (a) is oxidized to yield the intermediate N-carboalkoxy- or N-carboaryloxynorcodeine; (c) the intermediate N-carboalkoxy- or N-carboaryloxynorcodeinone resulting from step (b) is enolized with a base and the resultant enolate is thereafter methylated to yield the intermediate N-carboalkoxy- or N-carboaryloxynorthebaine; and (d) the intermediate N-carboalkoxy- or N-carboaryloxynorthebaine resulting from step (c) is reduced to yield thebaine.
摘要:
Oxycodone is manufactured in high yields and with a high purity using a composition including a thebaine component into 14-hydroxycodeinone and then reduction of 14-hydroxycodeinone to oxycodone.
摘要:
Pharmaceutical compositions comprise as the active ingredient potent orally active, nonneurotoxic anticonvulsant compounds that are highly effective in the MES animal model and are excitatory amino acid antagonists, and that are selected from the groups of hydrazones, hydrazines and semicarbazones consisting of those of the formulae: ##STR1## wherein R.sup.1 is 4-pyridyl or 3-pyridyl, R.sup.2 is methyl, ethyl or phenyl, R.sup.3 is 3,4-dichloro, p-chloro or m-chloro and R.sup.4 is oxygen. The compositions are administered to mammals in an amount to provide a dosage amount ranging from about 10 mg/kg to 200 mg/kg of body weight.