6,7-Didehydro-8β,10β-epoxy-3,4,7-trimethoxy-17-methylhasubanan-8-ol Chemical Properties

Boiling point:

544.4±50.0 °C(Predicted)

Density 

1.35±0.1 g/cm3(Predicted)

solubility 

Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.

form 

Powder

pka

12.33±0.40(Predicted)

6,7-Didehydro-8β,10β-epoxy-3,4,7-trimethoxy-17-methylhasubanan-8-ol Usage And Synthesis

Description

This amorphous alkaloid from Stephania japonica Miers is almost a tautomeric mixture. It yields a crystalline methiodide, m.p. 207°C; [α]²⁰_D - 32° (MeOH) which may be used to characterize the base. Three methoxy1 groups, one hydroxyl group and a methylimino group are present in the molecule. When heated with AC20 at 180°C in a sealed tube, the base gives 1-acetoxy-2:S:6- trimethoxyphenanthrene, m.p. 140°C.

References

Tomita, Ibuka, Inubushi., Tetrahedron Lett., 3617 (1964)
Tomita, Inubushi, Ibuka., J. Pharm. Soc., Japan, 87, 381 (1967)

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