126589-82-0Relevant articles and documents
A PROCESS FOR THE PREPARATION OF 2-ACETOXYMETHYL-4 HALO-BUT-1-YL ACETATES
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Page 8; 9, (2010/02/06)
A process for the preparation of 2- acetoxymethyl-4-halo-but-l-yl acetates (I) in which X is chlorine or bromine, which are useful intermediates for the preparation of antiviral medicaments such as Penciclovir and Famciclovir, comprising the opening of 3-hydroxymethyl-tetrahydrofuran (V) in the presence of an acylating agent and a Lewis acid selected from magnesium bromide and samarium triiodide.
Derivatives of purine, process for their preparation and a pharmaceutical preparation
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, (2008/06/13)
Antivirally active compounds of formula (I), wherein R1 is hydrogen, hydroxy, mercapto or amino; R2 is hydrogen, hydroxy, fluoro, chloro or amino; R3 and R4 are independently selected from (II), (III), amino, hydroxy or an ether or ester residue thereof, or R3 together with R4 is (IV), wherein M is hydrogen or a pharmaceutically acceptable counterion; and n is 1 or 2; with the proviso that, when R2 is amino and R3 and R4 are hydroxy R1 is not hydroxy and in addition, when n=1, R1 is not hydrogen, and pharmaceutically acceptable salts thereof; processes for preparation of said compounds, a pharmaceutical composition comprising said compounds, methods for treatments of virus infections as well as use of compounds of formula (I) without the proviso for the manufacture of a medicament for treatment of AIDS. STR1