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Synthesis of dutadrupine

, : Synthesis of dutadrupine. Heterocycles (Tokyo) 19(3): 507-510

Dutadrupine [a constituent of Dutaillyea drupacea] (3) was synthesized by Claisen rearrangement of 7-(1,1-dimethylpropyn-1-oxy)-4-methoxyfuro[2,3b]quinoline obtained by condensation of 7-hydroxy-4-methoxyfuro[2,3b]quinoline with 3-chloro-3-methylbutyne.


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Namba, M.; Hanafusa, T.; Kono, N.; Tarui, S.; (Japan), T.G.G.Hypoglycemia Study Group, 1993: Clinical evaluation of biosynthetic glucagon treatment for recovery from hypoglycemia developed in diabetic patients. Biosynthetic glucagon (GL-G) produced by recombinant DNA technology with transformed yeast strains is already available for clinical use. We studied the effects of 1 mg GL-G injection on plasma glucose level and hypoglycemic symptoms in 38 diabeti...

Ryu, J.Sang.; Kim, J-Il.; Kunkel, T.; Kim, B.Chul.; Cho, D.Shik.; Hong, S.Hyun.; Kim, S-Hee.; Fernández, A.Piñas.; Kim, Y.; Alonso, J.M.; Ecker, J.R.; Nagy, F.; Lim, P.Ok.; Song, P-Soon.; Schäfer, E.; Nam, H.Gil., 2005: Phytochrome-specific type 5 phosphatase controls light signal flux by enhancing phytochrome stability and affinity for a signal transducer. Environmental light information such as quality, intensity, and duration in red (apprx660 nm) and far-red (apprx730 nm) wavelengths is perceived by phytochrome photoreceptors in plants, critically influencing almost all developmental strategies fr...

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