6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione
6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione ??? ???
?? ??:
34647-65-9
???:
6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione
???(??):
Pontevedrine;6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione;4H-Dibenzo[de,g]quinoline-4,5(6H)-dione, 1,2,9,10-tetramethoxy-6-methyl-
CBNumber:
CB12221871
???:
C21H19NO6
??? ??:
381.38
MOL ??:
34647-65-9.mol
6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione ??
???
269-271°C
?? ?
612.3±65.0 °C(Predicted)
??
1.329±0.06 g/cm3(Predicted)
?? ?? (pKa)
-0.82±0.20(Predicted)
??
6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione C??? ??, ??, ??
??
A highly colourless alkaloid from Glaucium flavum Cr. var. vestitum, the base
forms clusters of red needles from EtOH-CHC13. The ultraviolet spectrum has
three absorption maxima at 245, 312 and 470 mil with a shoulder at 325 mil.
Four methoxyl groups are present, the structure having been established from
spectroscopic evidence.
?? ??
Ribas, Sueiras, Castedo., Tetrahedron Lett., 3093 (1971)
6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione ?? ?? ? ???
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?? ??
6-Methyl-1,2,9,10-tetramethoxy-4H-dibenzo[de,g]quinoline-4,5(6H)-dione ?? ??
???( 0)?? ??
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