Table 3.

Evaluation of the effect of the flavin reductase as biocatalyst. ^a.

Entry	Catalyst	Buffer	Yield (%) b
1	Flavin reductase	Tris-HCl pH 7	36
2	Flavin reductase	No buffer	35
3	Uninduced cell lysate soup	Tris-HCl pH 8	23
4	Denaturated flavin reductase	No buffer	17
5	BSA	No buffer	15
6	No catalyst	No buffer	18

^areaction condition: 1a (0.2 mmol), 2a (0.1 mmol) and 100 μg catalyst in 2 ml solvent at room temperature for 24 h.

^bisolated yield.