Maleic Acid → HCID 69209679, compound

Participants

Reaction Steps

Compounds 158 (100.3 mg, 0.219 mmol) and maleic acid (25.4 mg, 0.219 mmol) were dissolved in CH3OH (2 mL) and stirred at room temperature under a N2 atmosphere for about 75 min. The reaction mixture was filtered through a cotton plug and concentrated in vacuo to afford a solid 167, 0.1239 g, mp 99-100° C. In a qualitative test, this material was water-soluble. HPLC: Inertsil ODS-3V C18, 40:30:30 [KH2PO4(0.01M, pH 3.2):CH3OH:CH3CN], 264 nm, Rt 7.7 min, 87.9% purity.

Provenance & Evidence