Synthesis of a psilocin hapten and a protein-hapten conjugate.
Derivatives of psilocin with omega-functionalized alkyl spacers in position 1 of the indole ring were synthesized as haptens for use in a radioimmunoassay. Whereas the psilocin analogues with a 3-aminopropyl and a 4-aminobutyl moiety at the indole nitrogen decomposed during synthesis, the analogous 3-carboxypropyl psilocin derivative proved to be stable. This compound was coupled to bovine serum albumin (BSA) using the N-hydroxysuccinimide ester-mediated conjugation. The protein-hapten conjugate was characterized by matrix-assisted laser desorption ionization mass spectrometry. The mass spectrometry data indicated an average incorporation ratio of 4-5 molecules of psilocin hapten per molecule of BSA.
D006241:Haptens / Q000737:chemistry; D011562:Psilocybin / Q000031:analogs & derivatives* / Q000138:chemical synthesis*
D006241:Haptens; D011562:Psilocybin; C009105:psilocin