4-(3-Borono-5-fluorophenoxy)butanoic acid → Sodium 2-((1E,3Z,5E)-3-(3-(3-Carboxypropoxy)-5-fluorophenyl)-5-(1,1-dimethyl-6,8-disulfonato-3-(3-sulfonatopropyl)-1H-benzo[e]indol-2(3H)-ylidene)penta-1,3-dienyl)-1,1-dimethyl-3-(3-sulfonatopropyl)-1H-benzo[e]indolium-6,8-disulfonate

Participants

Role	Name	HCID	Charge
Reactant	4-(3-Borono-5-fluorophenoxy)butanoic acid	HCID 67523969	—
Reactant	Sodium 2-((1E,3Z,5E)-3-(3-(4-Carboxybutyl)phenyl)-5-(1,1-dimethyl-6,8-disulfonato-3-(3-sulfonatopropyl)-1H-benzo[e]indol-2(3H)-ylidene)penta-1,3-dienyl)-1,1-dimethyl-3-(3-sulfonatopropyl)-1H-benzo[e]indolium-6,8-disulfonate	HCID 86649207	—
Product	Sodium 2-((1E,3Z,5E)-3-(3-(3-Carboxypropoxy)-5-fluorophenyl)-5-(1,1-dimethyl-6,8-disulfonato-3-(3-sulfonatopropyl)-1H-benzo[e]indol-2(3H)-ylidene)penta-1,3-dienyl)-1,1-dimethyl-3-(3-sulfonatopropyl)-1H-benzo[e]indolium-6,8-disulfonate	HCID 86649225	—

Compound 35 is prepared analogously to compound 8 (Example 8), except that 4-(3-borono-5-fluorophenoxy)butanoic acid is used as a starting material.