138836-89-2

Upstream product

• 28668-07-7 ethyl 3-methyl-4-nitro-1H-pyrazole-5-carboxylate 
• 4330-21-6 2-deoxy-3,5-di-O-p-toluoyl-α-D-erythro-pentofuranosyl chloride 

Downstream Products

• 138836-94-9 Diisopropyl-phosphoramidous acid (2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(5-isobutyrylamino-3-methyl-7-oxo-6,7-dihydro-pyrazolo[4,3-d]pyrimidin-2-yl)-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester 
• 138856-94-7 N-<2-<5-O--2-deoxy-β-D-ribofuranosyl>-3-methyl-7-oxo-2H-pyrazolo<4,3-d>pyrimidin-5-yl>-2-methylpropanamide 

Relevant academic research and scientific papers

Design of a nonnatural deoxyribonucleoside for recognition of GC base pairs by oligonucleotide-directed triple helix formation

The deoxyribonucleoside 1-(2-deoxy-β-D-ribofuranosyl)-3-methyl-5-amino-1H-pyrazolo[4,3-d]pyrimidin- 7-one (P1) was designed such that two specific hydrogen bonds would form with guanine (G) of a Watson-Crick guanine-cytosine (GC) base pair in the major gr