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1: With (S)-2-(diphenyl(trimethylsilyloxy)methyl)pyrrolidine; meta-nitrobenzoic acid in toluene T=3°C; Michael addition; Cooling with ice; 2: With sodium tetrahydroborate in methanol; toluene T=0°C; 3: With ammonium chloride in methanol; toluene T=0°C;
参考文献
WARF - Wisconsin Alumni Research Foundation
Patent: US2009/264676 A1, 2009 ;
Location in patent: Page/Page column 8-10; 12 ;
1: With 4-methyl-morpholine in chloroform T=20°C; 20 h; 2: With borane in tetrahydrofuran; chloroform T=-15°C; 1 h; Further stages. Title compound not separated from byproducts.;
参考文献
Wiesner, Markus; Revell, Jefferson D.; Tonazzi, Sandro; Wennemers, Helma
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