In a scale-up microbial transformation of(–)-huperzine A(1) by Streptomyces griseus CACC 200300, a specific carboxylated derivative(2) was yielded together with two known hydroxylated metabolites. The structure...
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In a scale-up microbial transformation of(–)-huperzine A(1) by Streptomyces griseus CACC 200300, a specific carboxylated derivative(2) was yielded together with two known hydroxylated metabolites. The structure of 2 was characterized as 16-carboxyl huperzine A on the basis of IR, HRMS and NMR spectroscopic data analysis.
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