1. Asymmetric synthesis of (-)-eburnamonine and (+)-epi-eburnamonine from (4S)-4-ethyl-4-[2-(hydroxycarbonyl)ethyl]-2-butyrolactone: A.G. Wee & Q. Yu; J. Org. Chem. 66. 8935 (2001),
2. Experimental clinical studies on the effect of eburnamonine in cerebrovascular disorders: W. Jansen, et al.; Pharmacopsychiatry 19, 389 (1986). |