Rearrangement of (1,2,4-Triazol-4-yl)ethanols to (1,2,4-Triazol-1-yl)ethanols
摘要:
The mechanism of rearrangement of beta-hydroxyethyl-(1,2,4-triazoles) has been shown using crossover experiments to be intermolecular and free energy profiles show that reactions are thermodynamically-controlled.
Baker's yeast reduction of arylalkyl and arylalkenil γ- and δ-keto acids
摘要:
gamma- and delta-Lactones 5, 6, 13, 14, 15 and 16 were synthesized via baker's yeast reduction of the corresponding keto acids 3 ,4 and 9-12. The enantioselectivity of the reduction is strongly dependent on the nature of the keto acid: the delta-lactones were always obtained in an ee% higher than the gamma-lactones and ranging from 70% to 100%.
A compound represented by the general formula (I) or a salt thereof:
[T represents oxygen atom and the like; V represents CH
2
and the like; R
O1
to R
O4
represent hydrogen atom and the like; A represents a linear alkylene group or linear alkenylene group having 2 to 8 carbon atoms and the like; D represents carboxyl group and the like; X represents ethylene group, trimethylene group and the like; E represents —CH(OH)— group and the like; and W represent —U
1
—(R
W1
)(R
W2
)—U
2
—U
3
group (U
1
represents a single bond, an alkylene group having 1 to 4 carbon atoms and the like; R
W1
and R
W2
represent hydrogen atom and the like; U
2
represents a single bond, an alkylene group having 1 to 4 carbon atoms and the like; and U
3
represent an alkyl group having 1 to 8 carbon atoms and the like), or a residue of a carbon ring or heterocyclic compound], which can be utilized as an active ingredient of medicaments effective for prophylactic and/or therapeutic treatment of skeletal diseases such as osteoporosis and fracture, glaucoma, ulcerative colitis and the like.
SIX-MEMBERED HETEROCYCLIC COMPOUND AND THE USE THEREOF
申请人:Asahi Kasei Pharma Corporation
公开号:EP1847533A1
公开(公告)日:2007-10-24
A compound represented by the general formula (I) or a salt thereof:
[T represents oxygen atom and the like; V represents CH2 and the like; RO1 to RO4 represent hydrogen atom and the like; A represents a linear alkylene group or linear alkenylene group having 2 to 8 carbon atoms and the like; D represents carboxyl group and the like; X represents ethylene group, trimethylene group and the like; E represents -CH(OH)- group and the like; and W represent -U1-(RW1)(RW2)-U2-U3 group (U1 represents a single bond, an alkylene group having 1 to 4 carbon atoms and the like; RW1 and RW2 represent hydrogen atom and the like; U2 represents a single bond, an alkylene group having 1 to 4 carbon atoms and the like; and U3 represent an alkyl group having 1 to 8 carbon atoms and the like), or a residue of a carbon ring or heterocyclic compound], which can be utilized as an active ingredient of medicaments effective for prophylactic and/or therapeutic treatment of skeletal diseases such as osteoporosis and fracture, glaucoma, ulcerative colitis and the like.
[EN] BIOFUEL PRODUCTION<br/>[FR] PRODUCTION DE BIOCARBURANT
申请人:BIO ARCHITECTURE LAB INC
公开号:WO2009046375A2
公开(公告)日:2009-04-09
Methods, enzymes, recombinant microorganism, and microbial systems are provided for converting polysaccharides, such as those derived from biomass, into suitable monosaccharides or oligosaccharides, as well as for converting suitable monosaccharides or oligosaccharides into commodity chemicals, such as biofuels. Commodity chemicals produced by the methods described herein are also provided. Commodity chemical enriched, refinery-produced petroleum products are also provided, as well as methods for producing the same.