申请人:Innosense S.r.l.
公开号:EP1065250A1
公开(公告)日:2001-01-03
A fluorescent cyanine dye of the following general formula is disclosed:
wherein:
X1 and X2 are indipendently selected from the group consisting of -O-, -S-, -C(CH3)2 or -C=CH2; Y1 and Y2 are nonmetal atoms required to form a benzo-condensed or naphtho-condensed ring; Q is a conjugated moiety that increases the fluorescent quantum yield and the stability of the compound; R1 and R2 are indipendently selected from the group consisting of H, C1-C4, alkyl, alkylensulfonic group or alkylensulfonate group wherein the alkylene group has from 1 to 4 carbon atoms; R3, R4 and R5 are indipendently selected from the group consisting of H, a sulfonic group, a sulfonate group, alkylensulfonic, alkylensulfonate and -SO2NH(CH2)m-W-CH2)nZ, wherein alkylene has 1 to 4 carbon atoms, with the proviso that at least one of R1 to R5 contains a sulfonic or sulfonate group; W is absent or is a group selected from -SO2NH, -O-, -COO-, or -CONH-; n = 0-12 and m = 0-12 with the provisoes that m+n ≤ 12 and at least one of m and n ≠ 0; and Z is, or contains a N, O or S nucleophile functionality or is, or contains a functionality capable of reacting with N, O or S nucleophiles. Nucleophile functionalities include -NH2, -OH, and -SH groups; groups capable of reacting with such functionalities include -COCI, -COOCOR, -CONHNH2, N-hydroxysuccinimido esters, -NCS, -CHO, -COCH2I, phosphoramidite and maleimido.
本发明公开了一种通式如下的荧光蓝染料:
其中
X1和X2独立地选自-O-、-S-、-C(CH3)2或-C=CH2组成的组;Y1和Y2是形成苯并缩合环或萘并缩合环所需的非金属原子;Q是共轭分子,可提高化合物的荧光量子产率和稳定性;R1 和 R2 独立地选自 H、C1-C4、烷基、烷基磺酸基团或烷基磺酸盐基团组成的组,其中亚烷基具有 1 至 4 个碳原子;R3、R4 和 R5 独立地选自 H、磺酸基、磺酸盐基、烷基磺酸基、烷基磺酸盐基和 -SO2NH(CH2)m-W-CH2)nZ(其中亚烷基具有 1 至 4 个碳原子)组成的组,但 R1 至 R5 中至少有一个含有磺酸基或磺酸盐基;W 不存在或为选自-SO2NH、-O-、-COO-或-CONH-的基团;n = 0-12,m = 0-12,但条件是 m+n≤12 且 m 和 n 中至少有一个≠0;Z 是或含有 N、O 或 S 亲核官能团,或者是或含有能与 N、O 或 S 亲核物反应的官能团。亲核官能团包括-NH2、-OH 和-SH 基团;能与此类官能团反应的基团包括-COCI、-COOCOR、-CONHNH2、N-羟基琥珀酰亚胺酯、-NCS、-CHO、-COCH2I、亚磷酸胺和马来酰亚胺。