N<sub>21</sub>,N<sub>22</sub>-carbonyl-bridged biliverdin. red-blue color change effected by conformation
作者:Stefan E. Boiadjiev、David A. Lightner
DOI:10.1002/jhet.5570420126
日期:2005.1
An N21,N22-carbonyl-bridged mesobiliverdin, prepared in high yield by reaction of the unbridged parent (λmax 639 nm, ϵ 15,700, chloroform) with 1,1′-carbonyldiimidazole and 1,8-diazabicyclo[5.4.0]undec-7-ene, gave magenta-colored solutions in chloroform that absorb strongly in the visible spectrum (λmax 534 nm, ϵ 27,700) and shifted to bright blue (λmax 669 nm, ϵ 35,300) upon addition of trifluoroacetic
N 21,N 22-羰基桥联的中胆色素,通过未桥联的母体(λmax 639 nm,ϵ 15,700,氯仿)与1,1'-羰基二咪唑和1,8-二氮杂双环[5.4.0]反应高产率制备] undec-7-ene制得品红色的氯仿溶液,在可见光谱中强烈吸收(λ最大值534 nm,ϵ 27,700),加入三氟乙酸后变为亮蓝色(λmax 669 nm,ϵ 35,300)。