https://www.selleckchem.com/pr....oducts/Rapamycin.htm
A 10-g scale one-pot synthesis via a combination of (S)-P-phosphoramidation and protecting group removal followed by one-step recrystallization gave remdesivir in 70% yield and 99.3/0.7 d.r. The organocatalyst was recovered in 83% yield for reuse, and similar results were obtained. This one-pot process offers an excellent opportunity for industrial production of remdesivir.The speculated presence of monomolecular lamellae of antagonistic salts in oil-water mixtures has left several open questions besides their hypothetical existence,