Synthesis of (6S)-6-hydroxy-4-epi-shikimic acid
نویسندگان
چکیده
منابع مشابه
Tris[(6S)-6-hydroxy-4-epi-shikimic acid] monohydrate: an enantiomerically pure hydroxylated shikimic acid derived from methyl shikimate
The title compound, 3C(7)H(10)O(6)·H(2)O, is the enanti-omerically pure product of a multi-step synthesis from the enanti-omerically pure natural shikimic acid. The asymmetric unit contains three mol-ecules of the acid and one mol-ecule of water. The cyclo-hexene rings of the acids have half-chair conformations. The carboxyl-ate, the four hydroxide groups and the additional water mol-ecule form...
متن کاملSYNTHESIS OF 8-HYDROXY-6-METHOXY- 3-UNDECYLISOCOUMARIN AND 2-HY DROXY - 4-METHOXY-6-(2-OXOTRIDECYL) BENZOIC ACID
Straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. Hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, Cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furni...
متن کاملSynthesis and Biological Evaluation of 4-hydroxychromenyl arylmethyl-6-hydroxy pyrimidine-2, 4-dione Derivatives
Background: An efficient, promoted tri-component catalytic reaction between barbituric acid (or N,N-dimethyl barbituric acid), 4-hydroxy coumarin, and a wide range of aryl aldehydes using zinc oxide nanowires (ZnO NWs) to obtain some new 4-hydroxychromenylarylmethyl-6-hydroxypyrimidine-2,4-diones is described. Method: The reactants were successfully condensed ...
متن کاملsynthesis of 8-hydroxy-6-methoxy- 3-undecylisocoumarin and 2-hy droxy - 4-methoxy-6-(2-oxotridecyl) benzoic acid
straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furnished ...
متن کامل3'-Deamino-4'-epi-3'-hydroxy-daunorubicin and -doxorubicin. Synthesis and antitumor activity.
3'-Deamino-4'-epi-3'-hydroxy-daunorubicin (11) and -doxorubicin (14) have been synthesized. In the in vivo murine P-388 lymphocytic leukemia assay, these two compounds were more active than daunorubicin (1) and doxorubicin (2), respectively. Comparative studies in the P-388 assay indicated 3'-deamino-3'-hydroxydoxorubicin (3) to be more active than its 4'-epimer 14.
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2006
ISSN: 1551-7012
DOI: 10.3998/ark.5550190.0008.816