摘要:
摘要 从得克萨斯林德黑梅拉的地上部分分离出了以下新的环阿烷烃:(16S,23S)- 和 (16S,23R)-16,23-epoxycycloart-24-en-3-one, (3S,16S,23S)-和 (3S,16S,23R)-16,23-epoxycycloart-24-en-3ol, (16S,23R)-16,23-epoxy-23,25-epidioxycycloartan-3-one, (16S)-23,24 ,25,26,27-pentanorcycloartan-3-one-16,22-olide, (16S,23S,24R)- 或 (16S,23R,24S)-23,24-epoxycycloartan-3-one-16,25-二醇和 (16S,23ζ,24ζ)-cycloartan-3-one-16,23,24,25-tetrol。结构是通过化学转化和光谱方法建立的,在 (16S