Strychnos 1990 - 2004 - Crops for the Future

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Author Title Year Source title Reference Ahmad, S. K. and J. S. Prasad Efficacy of foliar extracts against preharvest and postharvest diseases of sponge-g 1995 Letters in Applied Microbiology 21(6): 373-375 Abstract The inhibitory potential of aqueous foliar extracts of Adhatoda vasica, Azadirachta indica, Catharanthes roseus, Datura fistulosa, Lantana camara, Muraya exotica, Ocimum sanctum, Ricinus communis and Strychnos nux-vomica were evaluated against soft rot diseases of sponge-gourd fruits caused by Helminthosporium spiciferum and Fusarium scirpi. Conidial germination of F. scirpi and H. spiciferum were reduced to about 75% when their spores were treated with A. indica, C. roseus, D. fistulosa, L. camara, M. exotica and O. sanctum. Considerable reductions (50%) in mycelial dry weights and colony diameters were recorded in liquid media containing (20%) aqueous extracts of C, roseus, D. fistulosa and M, exotica. Other extracts reduced the mycelial growth but to a lesser extent. Post-infection treatment of sponge-gourd fruits with the extracts of A. indica, L. camara, M. exotica, O. sanctum, D. fistulosa and C. roseus almost fully inhibited the spread of disease. Treatment of fruits with A. indica and C. roseus before fungal infection reduced the spread of disease caused by both the pathogens, whereas M. exotica, O. sanctum and D. fistulosa reduced the spread of soft-rot caused by F. scirpi but not by H, spiciferum. Author Title Year Source title Reference Amat, M., D. Coll and J. Bosch Enantiopure intermediates for the synthesis of Strychnos alkaloids 1995 Tetrahedron 51(39): 10759-10770 Abstract The addition of 2-(lithiomethyl)indole 2 to the enantiopure oxazolinylpyridine 18 followed by acidic treatment afforded a mixture of tetracyclic compounds 21a and 21b in a 3:2 ratio. The major epimer 21a was converted to tetracycle 25a, a tetracyclic ABDE substructure of Strychnos alkaloids.
Author Title Year Source title Reference Abstract Bandyopadyay, J., B. De and P. C. Datta Presence of vomicine in callus culture of Strychnos nux vomica 1995 Fitoterapia 66 (2): 183 - Author Title Year Source title Reference Abstract Bonjoch, J., D. Sole and J. Bosch Studies on the synthesis of strychnos indole alkaloids - synthesis of (+/-)-dehydrot 1995 Journal of the American Chemical Society 117(44): 11017-11018 - Author Title Year Source title Reference Bosch, J. and M. L. Bennasar Method for the synthesis of bridged indole alkaloids - addition of carbon nucleoph 1995 Synlett (6): 587-596 Abstract The methodology based on the nucleophilic addition of stabilized carbon nucleophiles to N- alkylpyridinium salts constitutes a powerful tool for the synthesis of bridged indole alkaloids belonging to a variety of structural types, either tetracyclic (as vinoxine and ervitsine) or pentacyclic, in the latter case after closure of the tryptamine chain by cyclization upon the indole ring.
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