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. Author manuscript; available in PMC: 2025 Aug 28.
Published before final editing as: ACS Med Chem Lett. 2025 Aug 19:10.1021/acsmedchemlett.5c00384. doi: 10.1021/acsmedchemlett.5c00384

Scheme 3.

Scheme 3.

Synthesis of cycloSal-based 2-PMPA prodrugs 18a-c and 21.a

aReagents and conditions: (a) SOCl2, CHCl3, 60 °C; (b) Salicyl alcohol or 2-aminobenzyl alcohol derivatives, DIEA (or Et3N), DCM, 0 °C or rt; (c) SOCl2, CHCl3, 60 °C; (d) (2-Amino-3-methylphenyl)methanol, DIEA/pyr, DCM, −78 °C to 0 °C.