【药物名称】RGH-5279
化学结构式(Chemical Structure):
参考文献No.33759
标题:Trans apovincaminic acid ester derivs. as drugs
作者:Sz醤tay, C.; Moldvai, I.; Vedres, A.; Incze, M.; Kreidl, J.; Czibula, L.; Farkas, J.; Deutschn?Juh醩z, I.; Gere, A.; Pellioniszn?Par骳zai, M.; Lapis, E.; Szekeres, A.; Z醞ern?Bal醶s, M.; Sarkadi, A.; et al. (Gedeon Richter Ltd.)
来源:EP 0876367; JP 2000502676; US 6093720; WO 9723481
合成路线图解说明:

Transesterification of l,l-trans apovincaminic acid methyl ester (I) with ethylene glycol at 120 C in the presence of potassium tert-butoxide furnished the hydroxyethyl ester (II). Subsequent acetylation of (II) with Ac2O in pyridine gave the corresponding acetoxyethyl ester, which was isolated as the hydrochloride salt upon treatment with HCl in isopropanol.

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