SULFONATED COUMARINS, SYNTHESIS THEREOF, FLUOROGENIC SUBSTRATES RESULTING FROM GRAFTING SAID COUMARINS ONTO SUGARS, METHOD FOR PREPARING SAID SUBSTRATES, AND USES THEREOF
SULFONATED COUMARINS, SYNTHESIS THEREOF, FLUOROGENIC SUBSTRATES RESULTING FROM GRAFTING SAID COUMARINS ONTO SUGARS, METHOD FOR PREPARING SAID SUBSTRATES, AND USES THEREOF