The new cassane-type diterpenes from Caesalpinia minax.

@article{Ma2012TheNC,
  title={The new cassane-type diterpenes from Caesalpinia minax.},
  author={Guoxu Ma and Jing-quan Yuan and Li Cao and Jun-shan Yang and Xu-dong Xu},
  journal={Chemical \& pharmaceutical bulletin},
  year={2012},
  volume={60 6},
  pages={
          759-63
        }
}
Four new cassane-type diterpenes, Neocaesalpin S (1), Neocaesalpin T (2), Neocaesalpin U (3), and Neocaesalpin V (4) were isolated from Caesalpinia minax HANCE together with seven known compounds Neocaesalpin A (5), Neocaesalpin K (6), Neocaesalpin L (7), Neocaesalpin M (8), Neocaesalpin O (9), Neocaesalpin MP (10), and Magnicaesalpin (11). Their structures were elucidated on the basis of 1D- and 2D-NMR, MS, and circular dichroism (CD) analysis. Compounds 1-4 were tested against liver cancer… 
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Eighteen compounds, including eight new cassane-type furanoditerpenoids, 3β-hydroxyphanginin H (1), 3β-acetoxyphanginin H (2), 7β-acetoxyphanginin H (3), 7β-hydroxyphanginin H (4),
Further Diterpenes from the Seeds of Caesalpinia minax Hance
Three new cassane-type diterpenes, neocaesalpin AF (1), neocaesalpin AG (2), and neocaesalpin AH (3), were isolated from the seeds of Caesalpinia minax Hance. Their structures were elucidated on the
Caesalminaxins A-L, cassane diterpenoids from the seeds of Caesalpinia minax.
TLDR
Fourteen new cassane diterpenoids, caesalminaxins A-L (1-14), and three known compounds were isolated from the seeds of Caesalpinia minax, and compounds 3 and 4 possess a rare spiro C/D ring system.
Cassane‐Type Diterpenoids from the Seeds of Caesalpinia bonduc (L.) Roxb.
Ten new cassane‐type diterpenoids were isolated from the seeds of Caesalpinia bonduc (L.) Roxb., including 6α‐hydroxycaesalpinin P (1), 14‐epi‐caesalpinin E1 (2), 6‐deacetylcaesalmin Z (3),
The New Cassane-Type Diterpenes from Caesalpinia minax.
Neocaesalpin S (Ia), T (Ib), U (Ic) and V (II) show mild antiproliferative activities against liver cancer (HepG-2) and breast cancer (MCF-7).
Novel dinorcassane- and cassane-type diterpenes from the seeds of Caesalpinia minax.
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