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Paolangelo Cerea Sergio Dall'Angelo Stefano Maiorana Rosangela Marchelli 《Tetrahedron》2007,63(19):4108-4119
We describe the synthesis of new hydrazinoPNA (hydPNA) monomers and new hydPNA-containing dimers. For the hydPNA monomers, the primary terminal amino group of the aminoethylglycine unit of classical aegPNA is replaced by a hydrazine moiety. An appropriate choice of two orthogonal protecting groups on the two hydrazine nitrogen atoms makes it possible to drive their coupling with other monomers selectively on one or the other nitrogen atom, thus obtaining two different types of PNA dimers. These dimers represent new building blocks that can be used to generate novel PNA oligomers. 相似文献
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