28-Homobrassinosteroids modified in the 26-position were synthesized from 22-hydroxy-23-ensteroids using Claisen rearrangement and subsequent cis-hydroxylation of the resulting Δ22-derivative.
                                    使用Claisen重排和随后对所得Δ22-衍
生物进行顺式羟基化,从22-羟基-23-烯类
固醇合成了26位修饰的28-Homobrassinosteroids。