Nobutaka Kawai

Amino acids and peptides. XXIX. A new efficient asymmetric synthesis of .ALPHA.-amino acid derivatives with recycle of a chiral reagent - asymmetric alkylation of a chiral Schiff base from glycine.

T. OGURI, Nobutaka Kawai, Takayuki Shioiri et al. · Chemical and Pharmaceutical Bulletin · 1978 · 77 citations · Full text

Engineering, Amino Acids, Organic Chemistry +17

Stereocontrolled Total Synthesis of (−)-Eudistomin C

Nobutaka Kawai, Hidetoshi Tokuyama, Tohru Fukuyama · Journal of the American Chemical Society · 2005 · 75 citations

New methods and reagents in organic synthesis. 2. A facile conversion of alkyl aryl ketones to .alpha.-arylalkanoic acids using diphenyl phosphorazidate. Its application to a new synthesis of ibuprofen and naproxen, nonsteroidal antiinflammatory agents

Takayuki Shioiri, Nobutaka Kawai · The Journal of Organic Chemistry · 1978 · 30 citations

Medicinal Chemistry, Natural Sciences, Altmetric Attention Score +9

New methods and reagents in organic synthesis. 35. A new synthesis of some non-steroidal anti-inflammatory agents with the 2-arylpropionic acid skeleton by the use of diphenyl phosphorazidate (DPPA) as a 1,3-dipole.

Nobutaka Kawai, Nobuharu Kato, Yasumasa Hamada et al. · Chemical and Pharmaceutical Bulletin · 1983 · 14 citations · Full text

Medicinal Chemistry, Derivative (Chemistry), Amidine 15D +15

New methods and reagents in organic synthesis. 34. Diphenyl phosphorazidate (DPPA) as a 1,3-dipole. A simple, efficient conversion of akyl phenyl ketones to 2-phenylakanoic acids.

Nobutaka Kawai, Takayuki Shioiri · Chemical and Pharmaceutical Bulletin · 1983 · 14 citations · Full text

Derivative (Chemistry), Engineering, Organic Chemistry +11