Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Mamoru Araki"'
Publikováno v:
Tetrahedron: Asymmetry. 9:157-167
Both enantiomers of C 2 -symmetric dimethyl 3,7-dihydroxybicyclo[3.3.0]-octa-2,6-diene-2,6-dicarboxylate 3 were prepared in enantiomerically pure form from symmetric tetraester 1 by the lipase-catalyzed demethoxycarbonylation, respectively. Double as
Publikováno v:
Tetrahedron: Asymmetry. 6:31-34
σ-Symmetric bicyclic diketones 8a-c were enantioselectively reduced with baker's yeast to give the chiral hydroxy ketones 7a-c in 74–;100% ee. The reduction product (+)-7a and (−)-7′c were shown to be the chiral intermediates for the total syn
Publikováno v:
ChemInform. 26
σ-Symmetric bicyclic diketones 8a-c were enantioselectively reduced with baker's yeast to give the chiral hydroxy ketones 7a-c in 74–;100% ee. The reduction product (+)-7a and (−)-7′c were shown to be the chiral intermediates for the total syn
Publikováno v:
ChemInform. 26
Publikováno v:
ChemInform. 29
Both enantiomers of C 2 -symmetric dimethyl 3,7-dihydroxybicyclo[3.3.0]-octa-2,6-diene-2,6-dicarboxylate 3 were prepared in enantiomerically pure form from symmetric tetraester 1 by the lipase-catalyzed demethoxycarbonylation, respectively. Double as
Publikováno v:
ChemInform. 29
The first asymmetric synthesis of (-)-isoiridomyrmecin and formal synthesis of (-)-loganin were done using chiral C2-symmetric building block dimethyl 3, 7-dihydroxy-cis-bicyclo[3.3.0]octa-2, 6-diene-2, 6-dicarboxylate (2) which was prepared by the l
Publikováno v:
Chemical and Pharmaceutical Bulletin. 46:736-738
The first asymmetric synthesis of (-)-isoiridomyrmecin and formal synthesis of (-)-loganin were done using chiral C2-symmetric building block dimethyl 3, 7-dihydroxy-cis-bicyclo[3.3.0]octa-2, 6-diene-2, 6-dicarboxylate (2) which was prepared by the l
Autor:
Shinobu Sakurada, Tadashi Ogawa, Masaki Hagiwara, Tadanori Morikawa, Toru Okayama, Tetsuhisa Miyamae, Mamoru Araki
Publikováno v:
Chemicalpharmaceutical bulletin. 51(7)
To improve the oral bioavailability of a dermorphin tetrapeptide analog, N(alpha)-1-iminoethyl-Tyr-D-MetO-Phe-MebetaAla-OH (III), which has a potent analgesic activity after oral administration, various derivatives were synthesized to increase lipoph
Publikováno v:
Tetrahedron Letters. 36:2255-2256
Both enantiomers of C2-symmetric dimethyl 3,7-dioxo-cis-bicyclo[3.3.0]-octane-2,6-dicarboxylate (3) were prepared in enantiomerically pure form by the lipase-catalyzed demethoxycarbonylation, respectively. An expeditious formal total synthesis of (+)