Table 1.
Kaurane diterpenoids isolated from Aristolochia species.
| Clerodane | Species |
|---|---|
| ent-Kauran-16β-ol [(–)-kauranol] (1) | A. rodriguesii [28] |
| ent-16β(H)-Kauran-17-oic acid (2) | A. elegans [7]; A. triangularis [13] |
| ent-Kauran-16β,17-diol (3) | A. elegans [7]; A. pubescens [31]; A. triangularis [13] |
| ent-16β(H)-Kaurane (4) | A. elegans [7]; A. triangularis [13] |
| ent-16α(H)-Kauran-17-al (5) | A. elegans [7] |
| ent-Kauran-16β,19-diol [ent-16β,19-dihydroxykaurane] (6) | A. rodriguesii [28] |
|
ent-16α-Hydroxy-kauran-19-al [16a-hydroxy-(–)-kauran-19-al] (7) |
A. rodriguesii [28]; A. triangularis [32] |
| ent-16β,17-Dihydroxy-(–)-kauran-19-oic acid (8) | A. rodriguesii [28] |
|
ent-16β-Hydroxy-kauran-18-al [(–)-kauran-16α-hydroxy-18-al] (9) |
A. triangularis [26] |
| ent-16β,17-Epoxykaurane (10) | A. elegans [7]; A. triangularis [32] |
| ent-15β,16β-Epoxy-17-hydroxy-kauran-19-oic acid (11) | A. rodriguesii [28] |
| ent-15β,16β-Epoxykauran-17-ol (12) | A. triangularis [13] |
| ent-16β,17-Isopropylidenedioxy-(–)-19-oic acid (13) | A. rodriguesii [28] |
| 17-nor-(–)-Kauran-16-one (14) | A. triangularis [13] |
| ent-17-Hydroxy-kaur-15-en-19-oic acid (15) | A. rodriguesii [28] |
| ent-Kaur-15-en-17-ol (16) |
A. elegans [7]; A. pubescens [31]; A. triangularis [13,32] |
|
ent-11β-Hydroxy-kaur-16-en-19-oic acid [(–)-11-hydroxy-kaur-16-en-19-oic acid] (17) |
A. anguicida [33] |
| ent-Kaur-16-en-19-oic acid [kaurenic acid] (18) | A. anguicida [33]; A. rodriguesii [28]; A. triangularis [13] |
| (–)-ent-Kaur-16-ene (19) | A. triangularis [13,32] |
| (–)-ent-Kaur-16-en-19-ol (20) | A. triangularis [13,32] |
| (–)-ent-Kaur-16-en-19-al (21) | A. triangularis [13,32] |
| ent-7β-Hydroxy-kaur-16-en-19-oic acid (22) | A. anguicida [34] |
|
ent-Kaur-16-en-3β,19-diol [ent-3β,18-dihydroxykaur-16-ene] (23) |
A. rodriguesii [28] |
|
ent-16β-Hydroxy-17-kauranyl aristolachate I [aristoloin I] (24) |
A. elegans [4] |
|
ent-16β-Hydroxy-17-kauranyl aristolachate II [aristoloin II] (25) |
A. pubescens [31] |
| ent-17-Hydroxy-16β-kauranyl aristolachate I [aristolin] (26) | A. elegans [4] |
Usual names are given in brackets