203643-20-3

Upstream product

• 206435-24-7 ({(2-tert-Butoxycarbonylamino-ethyl)-[2-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-acetyl]-amino}-methyl)-phosphonic acid diphenyl ester 
• 227798-11-0 ({(2-Amino-ethyl)-[2-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-acetyl]-amino}-methyl)-phosphonic acid diphenyl ester 
• 206435-23-6 [(2-tert-Butoxycarbonylamino-ethylamino)-methyl]-phosphonic acid diphenyl ester 
• 4712-55-4 diphenyl hydrogen phosphite 
• 203643-39-4 ({(2-{[(4-Methoxy-phenyl)-diphenyl-methyl]-amino}-ethyl)-[2-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-acetyl]-amino}-methyl)-phosphonic acid diphenyl ester 

Downstream Products

• 206435-25-8 ({(2-{[(4-Methoxy-phenyl)-diphenyl-methyl]-amino}-ethyl)-[2-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-acetyl]-amino}-methyl)-phosphonic acid 1-oxy-pyridin-2-ylmethyl ester phenyl ester 

Relevant academic research and scientific papers

Optimization of the binding properties of PNA-(5')-DNA chimerae

The synthesis and evaluation of PNA-(5')-DNA chimerae containing either a 5'-amide (i.e. 1a), a 5'-phosphodiester (i.e. 1b) or 5'-phosphonate linkages (i.e. 1c,d) at the junction site are described. The 5'-linkages could be installed using either 5'-amino-5'-deoxythymidine phosphoramidite 2, O-[2-(2-aminoethyl)-(thymin-1-ylacetyl)amino]ethyl phosphoramidite 3, N-(2-aminoethyl)-N-(thymin-1-ylacetyl)aminomethyl phosphonate 4 or N-(2-aminoethyl)-N-(allyloxycarbonyl)aminomethyl phosphonate 5 as building blocks, respectively. It is shown that PNA-(5')-DNA of type 1a-c have a higher binding affinity with complementary RNA than native DNA, and that the antisense activity is mainly due to RNase H.