(3S,11aR)-6-(phenylmethyl)oxy-3-methyl-2,3,11,11a-tetrahydrooxazolo3,2-apyrido1,2-dpyrazine-5,7-dione of the formula P-9 and/or (3S,11aR)-6-(phenymethyl)oxy-8-bromo-3-methyl-2,3,11,11a-tetrahydrooxazolo3,2-apyrido1,2-dpyrazine-5,7-dione of the formula P-10

摘要

The compounds are intermediates in the preparation of therapeutic agents useful in the treatment of viral infections, particularly HIV infection. The compounds are (3S,11aR)-6-[(phenylmethyl)oxy]-3-methyl-2,3,11,11a-tetrahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-5,7-dione of the formula P-9 and/or (3S,11aR)-6-[(phenylmethyl)oxy]-8-bromo-3-methyl-2,3,11,11a-tetrahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-5,7-dione of the formula P-10.;