A denitro-aristolochic acid derivative, aristofolin-A, together with ten known compounds, were isolated from the fresh flowers of Aristolochia kaempferi. The structures of these compounds were determined by spectral analysis.

amino acid, flavonoid, flowers, A. liukiunesis, Aristolochia kaempferi, Aristolochiaceae, denitro aristolochic acid

13C NMR data:
missing...
1H NMR data:
Linkage	Residue	H1	H2	H3	H4	H5	H6	H7	H8	H9	H10	H11	H12
1,6	bDGlcp	3.22-3.73	3.22-3.73	3.22-3.73	3.22-3.73	3.22-3.73	3.22-3.73
1	Subst	-	7.47	-	-	8.29	-	6.93	-	7.69	8.77	-	6.19-6.25
	Me	3.96

There is only one chemically distinct structure:

SVGMWSMILES3D molIonize

 

COc1cc(O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)cc2c1ccc1c(C(=O)O)cc3c(c12)OCO3

474.418 g/mol (C₂₃H₂₂O₁₁)

A denitro-aristolochic acid derivative, aristofolin-A, together with ten known compounds, were isolated from the fresh flowers of Aristolochia kaempferi. The structures of these compounds were determined by spectral analysis.

amino acid, flavonoid, flowers, A. liukiunesis, Aristolochia kaempferi, Aristolochiaceae, denitro aristolochic acid

There are 2 chemically distinct structures. Please, select:
xXKaempferol?(3-1)[aLRhap(1-6)]bDGlcp xXQuercetin?(3-1)[aLRhap(1-6)]bDGlcp

SVGMWSMILES3D molIonize

 

C[C@@H]1O[C@@H](OC[C@H]2O[C@@H](Oc3c(-c4ccc(O)cc4)oc4cc(O)cc(O)c4c3=O)[C@H](O)[C@@H](O)[C@@H]2O)[C@H](O)[C@H](O)[C@H]1O

594.522 g/mol (C₂₇H₃₀O₁₅)

A denitro-aristolochic acid derivative, aristofolin-A, together with ten known compounds, were isolated from the fresh flowers of Aristolochia kaempferi. The structures of these compounds were determined by spectral analysis.

amino acid, flavonoid, flowers, A. liukiunesis, Aristolochia kaempferi, Aristolochiaceae, denitro aristolochic acid

There is only one chemically distinct structure:

SVGMWSMILES3D molIonize

 

CC[C@H](CC[C@H](C)[C@@H]1CC[C@@H]2[C@@H]3CC=C4C[C@@H](O[C@@H]5O[C@H](CO)[C@@H](O)[C@H](O)[C@H]5O)CC[C@]4(C)[C@@H]3CC[C@]12C)C(C)C

576.859 g/mol (C₃₅H₆₀O₆)