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• 개요

  First isolated from various species of Stemmadenia, this alkaloid has subsequently been found in DipZorrhynchus rondyZocarpon subsp. mossambiensis Benth. and MeZodinus australis. The following specific rotations have been reported; [α]¹⁹_D + 310° (c 0.527, pyridine), [α]²⁰_D~O + 329° (pyridine) and [α]²⁵_D~S + 324° (pyridine). The alkaloid gives an ultraviolet spectrum exhibiting absorption maxima at 227, 284 and 292 m/J. with shoulders at 275 and 305 m/J.. One nitrogen atom is tertiary, the other being part of the indole ring. The solution in concentrated HN03 is a bright yellow.

• 참고 문헌

  Watts, Collera, Sandoval., Tetrahedron, 2, 173 (1958)
  Stauffacher., HeZv. Chim. Acta, 44, 2006 (1961)
  Sandoval et aZ., Tetrahedron Lett., 409 (1962)
  Schumann, Schmid., HeZv. Chim. Acta., 46, 1996 (1963)
  Linde., ibid, 48,1822 (1965)

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