、
三氟乙酸 、 2,6-dimethyl-4-[(E)-2-(2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-yl)vinyl]pyranylium tetrafluoroborate 在
三乙胺 作用下,
以
N,N-二甲基甲酰胺 、
乙腈 为溶剂,
以28%的产率得到1-((R)-9-amino-24-((R)-9-amino-4-(2,2-diphenylacetamido)-1-(4-hydroxyphenyl)-3,11,15,20-tetraoxo-2,8,10,16,21-pentaazatricos-9-en-23-yl)-4-(2,2-diphenylacetamido)-1-(4-hydroxyphenyl)-3,11,15,20-tetraoxo-2,8,10,16,21,24-hexaazahexacos-9-en-26-yl)-4-((E)-2-(1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)ethenyl)-2,6-dimethylpyridinium tris(hydrotrifluoroacetate) trifluoroacetate