Solid phase-supported reaction of N.C.A. H11CN with arabinose: a simplified automated synthesis of D-[1-11C]glucose
摘要:
A simplified, automated synthesis for D-[1-C-11]glucose is described by the solid phase-supported reaction of (NH4CN)-C-11 with D-arabinose on an Alumina N Sep-Pak(TM). C-11-cyanide reacted instantaneously to produce [1-C-11]aldonitriles. Reduction with Raney nickel in formic acid and semipreparative HPLC afforded D-[1-C-11]glucose with radiochemical purity >95%. Compared with previously reported procedures a pH adjustment and rotary evaporation step is avoided resulting in a shortening of the synthesis time from 55 to 38 min. The radiochemical yield was 5 - 15% (2.5 - 8.5% non-corrected) based on (NH4CN)-C-11. For a typical production starting with 20 GBq of (NH4CN)-C-11 up to 500 MBq D-[1-C-11]glucose was obtained at end of synthesis as a sterile, formulated solution.
A simplified, automated synthesis for D-[1-C-11]glucose is described by the solid phase-supported reaction of (NH4CN)-C-11 with D-arabinose on an Alumina N Sep-Pak(TM). C-11-cyanide reacted instantaneously to produce [1-C-11]aldonitriles. Reduction with Raney nickel in formic acid and semipreparative HPLC afforded D-[1-C-11]glucose with radiochemical purity >95%. Compared with previously reported procedures a pH adjustment and rotary evaporation step is avoided resulting in a shortening of the synthesis time from 55 to 38 min. The radiochemical yield was 5 - 15% (2.5 - 8.5% non-corrected) based on (NH4CN)-C-11. For a typical production starting with 20 GBq of (NH4CN)-C-11 up to 500 MBq D-[1-C-11]glucose was obtained at end of synthesis as a sterile, formulated solution.
Dence, C. S.; Powers, W. J.; Welch, M. J., Journal of labelled compounds and radiopharmaceuticals, 2001, vol. 44, p. S137 - S139