A total of 15 compounds were extracted from the ethyl acetate extraction of the twigs and leaves of Erythrina strica.Based on NMR spectral data, their structures were identified as loliolide(1), phaseic acid(2), pinna...A total of 15 compounds were extracted from the ethyl acetate extraction of the twigs and leaves of Erythrina strica.Based on NMR spectral data, their structures were identified as loliolide(1), phaseic acid(2), pinnatififidanoid A(3), soyasapogenol E(4), soyasapogenol B(5), 2α,3α,19α,23-tetrahydroxyurs-12-en-28-oic acid(6), 3β,22β,24-trihydroxyolean-12-en-29-oic acid(oxytrogenin)(7),(23 Z)-9,19-cycloart-23-ene-3β,25-diol(8), 3,4-dihydroxybenzoic acid(9), syringaresinol(10),(E)-4-hydroxy-dodec-2-enedioic acid(11), lutein(12), ergosterol-5,8-peroxide(13), β-sitosterol(14), and daucosterol(15). Except for compounds 13–15,all the compounds were isolated from this plant for the first time. Moreover, sesquiterpenoids were isolated from Erythrina genus for the first time.展开更多
基金National Natural Science Foundation of China (Grant No. 32060099)。
文摘A total of 15 compounds were extracted from the ethyl acetate extraction of the twigs and leaves of Erythrina strica.Based on NMR spectral data, their structures were identified as loliolide(1), phaseic acid(2), pinnatififidanoid A(3), soyasapogenol E(4), soyasapogenol B(5), 2α,3α,19α,23-tetrahydroxyurs-12-en-28-oic acid(6), 3β,22β,24-trihydroxyolean-12-en-29-oic acid(oxytrogenin)(7),(23 Z)-9,19-cycloart-23-ene-3β,25-diol(8), 3,4-dihydroxybenzoic acid(9), syringaresinol(10),(E)-4-hydroxy-dodec-2-enedioic acid(11), lutein(12), ergosterol-5,8-peroxide(13), β-sitosterol(14), and daucosterol(15). Except for compounds 13–15,all the compounds were isolated from this plant for the first time. Moreover, sesquiterpenoids were isolated from Erythrina genus for the first time.
