Гидрохлорид Эпирубицин химические свойства, назначение, производство
Описание
Epirubicin hydrochloride is an antitumor antibiotic which is epimeric with
doxorubicin a t the 4’-position of the amino sugar moiety. It has shown utility in
the treatment of mammary, gastric, colorectal, pulmonary and ovarian carcinomas,
as well as malignant lymphoma and melanoma and soft tissue sarcoma. It is
reported to be less sardiotoxic than doxorubicin.
Химические свойства
Orange-Red Crystalline Solid
Использование
Used as an antineoplastic
Биологические функции
This stereoisomer of doxorubicin has the 4′-hydroxy group of the daunosamine sugar oriented in the β-position . Epirubicin will be slowly reduced to the active C13 alcohol (epirubicinol), giving it a 30- to 38-hour half life, which is similar to that of doxorubicin. Unlike doxorubicinol, however, which was equally active with doxorubicin, epirubicinol has only one-tenth the activity of its parent drug and is not believed to contribute significantly to the therapeutic action of this agent.
Биологическая активность
Antibiotic antitumor agent. Inhibits the synthesis and function of DNA (IC 50 = 62.7 μ M in rat glioblastoma cell lines) and inhibits the relaxing property of topoisomerase II.
Клиническое использование
Epirubicin is indicated for use in breast cancer, and the starting dose is 100 to 120 mg/m2 (compared to a starting dose of 60–75 mg/m2 for doxorubicin).
Побочные эффекты
The side effects and precautions are as outlined previously for doxorubicin, although there is a lower risk of serious myocardial toxicity or myelotoxicity.
Метаболизм
Cleavage of the epimerized sugar will occur before excretion, generating an aglycone that is indistinguishable from that generated by doxorubicin. Although excretion is primarily biliary, dosage reduction in severe renal impairment, as well as in hepatic dysfunction, is warranted.
Гидрохлорид Эпирубицин препаратная продукция и сырье
сырьё
препарат