The synthesis of androstane brassinosteroid analogues with α-azido acid ester groups in position 17β
摘要:
Androstane brassinosteroid analogues with cc-azido acid ester groups in position 17 beta were synthesized from 2 alpha,3 alpha,17 beta-trihydroxy-5 alpha-androstan-6-one after the protection of the 2 alpha,3 alpha-diols upon treatment with the corresponding cc-azido acid and the subsequent deprotection of the diol grouping. Six new castasterone analogues were prepared. The biological activities were evaluated in two bioassays: a rice lamina inclination test and bean second internode bioassays. The activities of the new analogues differ in these two bioassays. (C) 2010 Elsevier Inc. All rights reserved.
The synthesis of androstane brassinosteroid analogues with α-azido acid ester groups in position 17β
摘要:
Androstane brassinosteroid analogues with cc-azido acid ester groups in position 17 beta were synthesized from 2 alpha,3 alpha,17 beta-trihydroxy-5 alpha-androstan-6-one after the protection of the 2 alpha,3 alpha-diols upon treatment with the corresponding cc-azido acid and the subsequent deprotection of the diol grouping. Six new castasterone analogues were prepared. The biological activities were evaluated in two bioassays: a rice lamina inclination test and bean second internode bioassays. The activities of the new analogues differ in these two bioassays. (C) 2010 Elsevier Inc. All rights reserved.
Androstane brassinosteroid analogues with cc-azido acid ester groups in position 17 beta were synthesized from 2 alpha,3 alpha,17 beta-trihydroxy-5 alpha-androstan-6-one after the protection of the 2 alpha,3 alpha-diols upon treatment with the corresponding cc-azido acid and the subsequent deprotection of the diol grouping. Six new castasterone analogues were prepared. The biological activities were evaluated in two bioassays: a rice lamina inclination test and bean second internode bioassays. The activities of the new analogues differ in these two bioassays. (C) 2010 Elsevier Inc. All rights reserved.