69945-44-4Relevant academic research and scientific papers
Highly Functionalized Cyclohexenyl Systems: Enzymatic Resolution and Selective Oxirane Opening Reactions of p-Benzoquinone Derivatives
Kohrt, Jeffrey T.,Gu, Jian-Xin,Johnson, Carl R.
, p. 5088 - 5093 (1998)
Diol 2, derived in two steps from p-benzoquinone, was converted to epoxy alcohol 3. The latter was resolved with crude Candida rugosa lipase in isopropenyl acetate/toluene to give acetate (-)-4 and residual alcohol (+)-3. Oxirane ring opening reactions of 3 and the corresponding acetate and TBDMS derivatives with a variety of nucleophiles gave diastereomerically pure 3,4,5,6-tetrasubstituted cyclohexene derivatives of type 6. X-ray crystal structures were obtained on compounds 6e, 6m and the diacetate prepared from 61. Nitrogen nucleophiles provided entry in various aziridines 10. Pd(0)-catalyzed nucleophilic additions to substrate 5 cleanly provided the diastereomeric pattern of type 11. trans-5,6-Disubstituted cyclohexadienes 13 were obtained by an unusual syn-reductive elimination on bromocarbonates 12 utilizing Pd or Zn.
Concise syntheses and some biological activities of dl-2,5-di-O-methyl-chiro-inositol, dl-1,4-di-O-methyl-scyllo-inositol, and dl-1,6-dibromo-1,6-dideoxy-2,5-di-O-methyl-chiro-inositol
Aksu, Kadir,Akincioglu, Hulya,Gulcin, Ilhami,Kelebekli, Latif
, (2020/10/06)
The regio- and stereospecific synthesis of O-methyl-chiro-inositols and O-methyl-scyllo-inositol was achieved, starting from p-benzoquinone. After preparing dimethoxy conduritol-B as a key compound, regiospecific bromination of the alkene moiety of dimeth
Regio- and stereospecific synthesis of DL-4,5-dibromo-4,5-dideoxy-3,6-O-methyl-chiro-inositol
Kelebekli, Latif,Aksu, Kadir,?ahin, Ertan
, p. 1258 - 1260 (2018/03/08)
The regio- and stereospecific synthesis of DL-4,5-dibromo-4,5-dideoxy-3,6-O-methyl-chiro-inositol is reported. Bromination of p-benzoquinone followed by reduction of the carbonyl groups with NaBH4 gave the corresponding trans-dibromodiol compou
Synthesis of novel mono and bis-indole conduritol derivatives and their α/β-glycosidase inhibitory effects
Cavdar, Hueseyin,Talaz, Oktay,Ekinci, Deniz
, p. 7499 - 7503 (2013/02/22)
Here we synthesized four novel indole conduritol derivatives 1-4 for the first time in the literature and probed their biological activities with the α and β-glucosidases. The compounds showed quite effective glucosidase inhibitory action. IC50
Synthesis of novel cyano-cyclitols and their stereoselective biotransformation catalyzed by Rhodococcus erythropolis A4
D'Antona, Nicola,Nicolosi, Giovanni,Morrone, Raffaele,Kubac, David,Kaplan, Ondrej,Martinkova, Ludmila
experimental part, p. 695 - 702 (2010/08/03)
A variety of novel cyano-cyclitols possessing complex stereochemistry have been synthesized. These compounds were subjected to the biocatalyzed hydrolysis of their nitrile groups. The bacterial strain Rhodococcus erythropolis A4, expressing a nitrile hydr
A novel chemo-multienzymatic synthesis of bioactive cyclophellitol and epi-cyclophellitol in both enantiopure forms
D'Antona, Nicola,Morrone, Raffaele,Bovicelli, Paolo,Gambera, Giovanni,Kubac, David,Martinkova, Ludmila
scheme or table, p. 2448 - 2454 (2011/02/22)
A new route to synthesize cyclophellitol and epi-cyclophellitol from racemic starting materials in enantiopure forms has been developed. The synthesis involves a multi-enzymatic biotransformation pathway of the novel cyano-cyclitol (1R,4S,5R,6R)/(1S,4R,5S
Asymmetric induction of conduritols via AAA reactions: Synthesis of the aminocyclohexitol of hygromycin A
Trost, Barry M.
, p. 1619 - 1629 (2007/10/03)
Two synthetic routes towards the construction of the aminocyclohexitol moiety of hygromycin A have been developed based on palladium-catalyzed asymmetric alkylation of conduritol derivatives. A protocol has been established whereby this biologically relev
Enantioselective synthesis of (-)-LL-C10037α from benzoquinone
Murphy, Sean T.,Bencsik, Josef R.,Johnson, Carl R.
, p. 1483 - 1485 (2008/02/09)
(formula presented) The enantioselective total synthesis of the Streptomyces metabolite (-)-LL-C10037α has been accomplished in 10 steps and 20% overall yield. An early chiral intermediate was resolved with Candida rugosa lipase to provide (+)-5 with an e
Enzyme-assisted total synthesis of the optical antipodes D-myo-inositol 3,4,5-trisphosphate and D-myo-inositol 1,5,6-trisphosphate: Aspects of their structure-activity relationship to biologically active inositol phosphates
Adelt, Stephan,Plettenburg, Oliver,Stricker, Rolf,Reiser, Georg,Altenbach, Hans-Josef,Vogel, Günter
, p. 1262 - 1273 (2007/10/03)
Unambiguous total syntheses of both optical antipodes of the enantiomeric pair D-myo-inositol 3,4,5-trisphosphate (Ins(3,4,5)P3) and D- myo-inositol 1,5,6-trisphosphate (Ins(1,5,6)P3) are described. The ring system characteristic of
