10S)/(9R,10R)-colletotrichdiol A, respectively. The chemical structures of seven undescribed compounds and the known compounds, (−)-isoalternatine A, and (+)-alternatine A were determined using a combination of NMR, MS, X-ray diffraction, ECD calculations, and/or chemical synthesis. All possible enantiomers of colletotrichindoles A–E were synthesized and used to determine the absolute configurations of the
七种未描述的化合物,colletotrichindoles A–E、colletotrichaniline A 和 colletotrichdiol A,以及三种已知化合物,(−)-isoalternatine A、(+)-alternatine A 和 3-hydroxybutan-2-yl 2-phenylacetate 从中分离出来海洋来源的真菌Colletotrichu gloeosporioides BB4。
炭疽杆菌A、
炭疽杆菌C和
炭疽菌二醇A的外消旋混合物通过手性色谱进一步分离得到三对对映异构体(10 S ,11 R ,13 S )/(10 R ,11 S ,13 R )-
炭疽杆菌A, ( 10 R ,11 R ,13 S )/(10 S ,11 S,13 R )-colletotrichindole C, 和 (9 S ,10 S )/(9 R ,10 R)-colletotrichdiol