Thioheterocyclic near-infrared dyes

Details Thioheterocyclic near-infrared dyes Thioheterocyclic near-infrared dyes

1993-05-26

1995-08-08

Gupta, Yogendra N.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544298, 544316, 544318, 544345, 548142, 548159, 548221, 548251, 5482632, 5482634, 5482648, 548427, 548465, C07D23938, C07D26358, C07D25704, C07D24912

Patent

active

054400422

ABSTRACT:
Disclosed is a novel near-infrared absorbing dye of formula: ##STR1## wherein X.sup.1, X.sup.2 independently represents --CR.sup.8 R.sup.9 --, --S--, --Se--, --NR.sup.10 --, --CH.dbd.CH-- or --O--;

REFERENCES:
patent: 4882265 (1989-11-01), Laganis et al.
Synthetic Communications, 22(17) 2593-2598 (1992) Facile Derivatizations of Heptamethine Cyanine Dyes--Sucjan Strekowski et al.--Dept of Chemistry, Georgia State University.
American Chemical Society, pp. 4578-4580M16 (1992) Substitution Reactions of a Nucleofugal Group in Heptamethine Cyanine Dyes. Synthesis of an Isothiocycano Derivative for Labeling of Proteins with a Near--Infrared Chromophore. J. Org. Chem. 57, 4578-80, 1992.
Williams et al., Anal. Chem., 65, 601-605, Mar. 1993.

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