106058-91-7Relevant articles and documents
Control of enantioselectivity in the bakers' yeast reduction of β-keto ester derivatives in the presence of a sulfur compound
Hayakawa, Ryuuichirou,Nozawa, Kazumi,Shimizu, Makoto,Fujisawa, Tamotsu
, p. 67 - 70 (1998)
Improvement of the enantioselectivity and enhancement of the reactivity were achieved in the bakers' yeast reduction of the β-keto ester derivatives by the addition of a sulfur compound.
Production method of hexahydrofurofuranol derivative, intermediate therefor and production method thereof
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, (2008/06/13)
The present invention provides a method for producing compound (XIV) useful as an intermediate for pharmaceutical agents efficiently and economically on an industrial scale without using ozone oxidation and highly toxic reagent, and an intermediate used for this method. Particularly, the present invention provides a method for producing a compound having an absolute configuration represented by the formula (XV) and an enantiomer thereof without using a technique such as optical resolution and the like, and an intermediate used for this method. (1) Compound (XIII) as a starting material is led to compound (I), and after introducing a protecting group, subjected to reduction and cyclization to give compound (XIV). Particularly, compound (XIII) as a material is led to compound (I) via compound (XX) to produce compound (XIV). Using an optically active compound (XIII) as a starting material, a compound having an absolute configuration represented by the formula (XV) and the like are produced highly stereoselectively. (2) Compound (XXI) as a starting material is stereoselectively reduced to give compound (XXII), and by introduction of a protecting group, reduction and cyclization, compound (XXVI) is obtained, and by inverting hydroxyl group, compound (XV) is produced. wherein each symbol is as defined in the specification.
An efficient ruthenium-catalyzed formal synthesis of (-)-isoavenaciolide
Labeeuw, Olivier,Blanc, Delphine,Phansavath, Phannarath,Ratovelomanana-Vidal, Virginie,Genet, Jean-Pierre
, p. 2352 - 2358 (2007/10/03)
A formal synthesis of (-)-isoavenaciolide (1) by two different routes is reported. The first approach, leading to a key precursor 2 of (-)-isoavenaciolide (1), features the stereoselective construction of the three contiguous stereogenic centers by Evans
Lasonolide A: Structural revision and total synthesis
Song, Ho Young,Joo, Jung Min,Kang, Jung Won,Kim, Dae-Shik,Jung, Cheol-Kyu,Kwak, Hyo Shin,Park, Jin Hyun,Lee, Eun,Hong, Chang Yong,Jeong, ShinWu,Jeon, Kiwan
, p. 8080 - 8087 (2007/10/03)
The proposed structure of lasonolide A was synthesized employing radical cyclization reactions of β-alkoxyacrylates for preparation of the tetrahydropyranyl units A and B, but the spectroscopic data did not match those of the natural product. Both enantio