Ecdysteroids molecular modeling studies

Molecular modelling of ecdysteroids (7) and brassinosteroids is still in its infancy. A comparison of the three dimensional (3D-) structures of the two biologically most active representatives of brassinosteroids and ecdysteroids, i.e. of brassinolide and 20-hydroxyecdysone, suggests that functional groups relevant for bioactivity are found at similar positions in both molecules in spite of the structural differences mentioned above. More detailed comparative studies of the 3D-structures of ecdysteroids and brassinosteroids are eagerly awaited. 

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