The invention discloses compounds of the formula:
1
where n is 1, or 2 to 200 in which case each recurring unit can be the same or different,
B is a protected or unprotected base capable of Watson-Crick or of Hoogsteen pairing.
C is OH or OR′ where R′ is a protecting group or an activating group or a lipophilic group or an amino acid or amino amide or nucleoside,
D is H or a protecting group or a lipophilic group or an amino acyl group or nucleoside,
each of R′ and R″, which may be the same or different, is an alkyl or aryl group or R′ and R″ together represent 2 or more chain atoms necessary to complete an unsaturated or saturated ring with X and Y, said ring being optionally substituted and optionally being fused to at least one other ring,
X represents
2
and Y represents
3
wherein Y′ represents hydrogen or additionally, when R′ and R″ do not together complete a ring, an alkyl or aryl group, and X
1
, when R′ and R″ together complete a ring, represents hydrogen or forms a bridge with another atom of the ring, or when R′ and R″ do not together complete a ring, represents hydrogen or an alkyl or aryl group as well as a method of analysing a polynucleotide sequence comprising incubating the sequence with a probe comprising a compound of the above invention in which n is 2 or more under suitable hybridisation conditions, and detecting the presence or absence of any hybrid formed.
本发明公开了式化合物:
1
其中 n 为 1,或 2 至 200,在这种情况下,每个重复单元可以相同或不同、
B 是能进行沃森-克里克配对或霍格施泰因配对的受保护碱基或非受保护碱基。
C 是 OH 或 OR′,其中 R′是保护基团或活化基团或亲脂基团或
氨基酸或
氨基酰胺或核苷、
D 是 H 或保护基团或亲脂基团或
氨基酰基或核苷、
R′和 R″(可以相同或不同)各自是烷基或芳基,或 R′和 R″共同代表 2 个或 2 个以上的链原子,以与 X 和 Y 组成不饱和或饱和环,所述环可选择被取代,并可选择与至少一个其他环融合、
X 代表
2
和 Y 代表
3
其中 Y′代表氢,或者当 R′和 R″不能共同完成一个环时,另外代表一个烷基或芳基,以及 X
1
以及一种分析多核苷酸序列的方法,该方法包括在适当的杂交条件下,将该序列与含有上述发明的化合物(其中 n 为 2 或 2 以上)的探针孵育,并检测是否存在所形成的任何杂交体。