N6-[5-[(3aS,6aβ)-ヘキサヒドロ-2-オキソ-1H-チエノ[3,4-d]イミダゾール-4α-イル]-1-オキソペンチル]-L-リシン

純化方法Recrystallise biocytin rapidly from dilute MeOH or Me2CO. It can also be recrystallised from H2O by slow evaporation or by dissolving in the minimum volume of H2O and adding Me2CO until solid separates. It is freely soluble in H2O and AcOH but insoluble in Me2CO. [Wolf et al. J Am Chem Soc 74 2002 1952, 72 1048 1950.] It has been purified by chromatography on superfiltrol-Celite, Al2O3 and by countercurrent distribution and then recrystallised [IR: Peck et al. J Am Chem Soc 74 1991 1952]. The hydrochloride recrystallises from aqueous Me2CO/HCl and has m 227o (dec). [Beilstein 27 III/IV 7984.]