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. 2019 May 8;58(24):8226–8230. doi: 10.1002/anie.201900926

Table 1.

Biotransformations with 2‐ODD‐PH. Inline graphic

Entry Substrate HPLC area Yield ee of
R1= R3= [%][a] [%][b] 2 ac
R2= R4= 11 ac 12 ac 11 ac 12 ac [%][c]
1 rac2 a ‐CH2 H
H
27[d] 19[e] 10
2[f] rac2 b ‐CH2 H
OH
29 15 46
3 rac2 c Me
Me
OH
H
12 5 7 4 26

Reaction conditions: Cell‐free extract (CFE, 44 v %), 20 mm substrate, 2‐oxoglutarate (1.75 equiv), sodium ascorbate (3 equiv), 23 % DMSO as cosolvent. [a] Determined by peak area integration of the HPLC‐UV chromatogram (at 215 nm). [b] Yields of isolated, chromatographically pure, and fully characterized products are reported; [c] ee was determined via HPLC‐UV on a chiral stationary phase (for details see the Supporting Information). [d] With 37 % of diastereoisomer 3. [e] 20 % of compound 3 were isolated from the same batch; [α]D 20 values for 11 a and 3 are in full consistency with literature values.24 [f] The experiment was conducted on 50 mg substrate scale. Bold and dashed lines refer to relative stereochemistry; bold and dashed wedges refer to absolute stereochemistry.