An inexpensive carbohydrate derivative used as a chiral auxiliary in the synthesis of α-hydroxy carboxylic acids
作者:Hongwu Yu、C.Eric Ballard、Paul D Boyle、Binghe Wang
DOI:10.1016/s0040-4020(02)00871-2
日期:2002.9
Protected α-hydroxy carboxylic acids were synthesized in moderate yield and high diastereoselectivity by alkylation of glycolate (α-hydroxy acetate) enolates using a d-fructose-derived chiralauxiliary. The new chiral center was assigned the R configuration based on comparisons of optical rotations and on one crystal structure analysis. This alkylation methodology is compatible with several hydroxyl
This invention relates to compounds for the inhibition of histone deacetylase. More particularly, the invention provides for compounds of formula (I)
wherein Y, L, Z, W, X, Q, R
1
, R
2
and R
3
are as defined in the specification.
Disclosed are substituted thioimidazolidinone compounds and pharmaceutical compositions comprising such compounds. The compounds and compositions can be used for treatment of androgen receptor-associated diseases or disorders, such as prostate cancer, benign prostatic hypertrophy, male hair loss and hypertrichosis.