title: Synthesis of enzymatically and chemically non-hydrolyzable analogues of dinucleoside triphosphates Ap(3)A and Gp(3)G.
abstract: Dinucleoside polyphosphates are ubiquitous compounds tightly involved in the regulation of a number of key biological processes. Hydrolysis-resistant analogues of Ap(3)A and Gp(3)G, two important members of that family of nucleotides, have been synthesized. P(1),P(2):P(2),P(3)-Bis-methylene diadenosine and diguanosine triphosphates were prepared from O,O-dialkyl methaneselenophosphonates using an original methodology. Whereas the 2-fold addition of the methanephosphonate anion to the activated phosphorus species cannot be performed, multiple condensation of lithiated methaneselenophosphonate with electrophilic trivalent phosphorus compounds is revealed to be very effective. A one-pot condensation/esterification/oxidation sequence involving O,O-dialkyl methaneselenophosphonates provides a highly efficient route to the PCH(2)PCH(2)P backbone. This new development in selenophosphonate chemistry offers a great potential for further regioselective functionalization of polyphosphate mimics.
authors.affiliation: Université Louis Pasteur de Strasbourg, Laboratoire de Synthèse Bioorganique associé au CNRS, Faculté de Pharmacie 74, route du Rhin-BP 24-67 401 Illkirch, France.
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Klein
authors.forename: Stéphane
authors.initials: S
authors.lastname: Mons
authors.forename: Alain
authors.initials: A
authors.lastname: Valleix
authors.forename: Charles
authors.initials: C
authors.lastname: Mioskowski
authors.forename: Luc
authors.initials: L
authors.lastname: Lebeau
mesh_terms: D015226:Dinucleoside Phosphates / Q000138:chemical synthesis* / Q000737:chemistry; D004355:Drug Stability; D006868:Hydrolysis
chemical_list: D015226:Dinucleoside Phosphates; C011440:diadenosine triphosphate; C015139:diguanosine triphosphate