9-[(2S,4aR,6R,7R,7aS)-2,7-dihydroxy-2-sulfanylidene-hexahydro-1,3,5,2λ5-furo[3,2-d][1,3,2λ5]dioxaphosphinin-6-yl]-2-amino-6,9-dihydro-1H-purin-6-one; triethylamine
9-[(2R,4aR,6R,7R,7aS)-2,7-dihydroxy-2-sulfanylidene-hexahydro-1,3,5,2λ5-furo[3,2-d][1,3,2λ5]dioxaphosphinin-6-yl]-2-amino-6,9-dihydro-1H-purin-6-one; triethylamine