Synthesis of thromboxane A2 models from glucose

Trans-opening of the 2,3-anhydro-6-deoxy-4-O-methyl-α-D-allopyranoside with lithium bromide yields the altro and gluco regioisomers methyl 2-bromo- 2,6-dideoxy-4-O-methyl-α-D-altropyranoside and methyl 2-bromo-3,6-dideoxy- 4-O-methyl-α-D-glycopyranoside which can be hydrolysed to give the sugar prec...

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Publicado: 1997
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086215_v303_n4_p417_Cirelli
http://hdl.handle.net/20.500.12110/paper_00086215_v303_n4_p417_Cirelli
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spelling paper:paper_00086215_v303_n4_p417_Cirelli2023-06-08T14:32:35Z Synthesis of thromboxane A2 models from glucose 1.3-Anhydro-α-D-altropyranoside 2,6- dideoxy 2.6-Dioxabicyclo[3.1.1]heptanes Model compounds Thromboxane glucose pyranoside sugar thromboxane a2 article debromination isomer photolysis priority journal reaction analysis synthesis Trans-opening of the 2,3-anhydro-6-deoxy-4-O-methyl-α-D-allopyranoside with lithium bromide yields the altro and gluco regioisomers methyl 2-bromo- 2,6-dideoxy-4-O-methyl-α-D-altropyranoside and methyl 2-bromo-3,6-dideoxy- 4-O-methyl-α-D-glycopyranoside which can be hydrolysed to give the sugar precursors 2-bromo-2,6-dideoxy-4-O-methyl-α/β-D-altropyranose and 3-bromo- 3,6-dideoxy-4-O-methyl-D-glucopyranose. Under Mitsunobu conditions the altro compound yields the first 1,3-anhydro-altrose derivative. In case of the gluco derivative alkaline treatment does not give a 1,3-anhydro-glucose derivative but the 2,6-dideoxy-altrose via intermediate 2,3-epoxide formation. Methanolysis and reductive debromination under photolytic initiation were studied. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086215_v303_n4_p417_Cirelli http://hdl.handle.net/20.500.12110/paper_00086215_v303_n4_p417_Cirelli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 1.3-Anhydro-α-D-altropyranoside
2,6- dideoxy
2.6-Dioxabicyclo[3.1.1]heptanes
Model compounds
Thromboxane
glucose
pyranoside
sugar
thromboxane a2
article
debromination
isomer
photolysis
priority journal
reaction analysis
synthesis
spellingShingle 1.3-Anhydro-α-D-altropyranoside
2,6- dideoxy
2.6-Dioxabicyclo[3.1.1]heptanes
Model compounds
Thromboxane
glucose
pyranoside
sugar
thromboxane a2
article
debromination
isomer
photolysis
priority journal
reaction analysis
synthesis
Synthesis of thromboxane A2 models from glucose
topic_facet 1.3-Anhydro-α-D-altropyranoside
2,6- dideoxy
2.6-Dioxabicyclo[3.1.1]heptanes
Model compounds
Thromboxane
glucose
pyranoside
sugar
thromboxane a2
article
debromination
isomer
photolysis
priority journal
reaction analysis
synthesis
description Trans-opening of the 2,3-anhydro-6-deoxy-4-O-methyl-α-D-allopyranoside with lithium bromide yields the altro and gluco regioisomers methyl 2-bromo- 2,6-dideoxy-4-O-methyl-α-D-altropyranoside and methyl 2-bromo-3,6-dideoxy- 4-O-methyl-α-D-glycopyranoside which can be hydrolysed to give the sugar precursors 2-bromo-2,6-dideoxy-4-O-methyl-α/β-D-altropyranose and 3-bromo- 3,6-dideoxy-4-O-methyl-D-glucopyranose. Under Mitsunobu conditions the altro compound yields the first 1,3-anhydro-altrose derivative. In case of the gluco derivative alkaline treatment does not give a 1,3-anhydro-glucose derivative but the 2,6-dideoxy-altrose via intermediate 2,3-epoxide formation. Methanolysis and reductive debromination under photolytic initiation were studied.
title Synthesis of thromboxane A2 models from glucose
title_short Synthesis of thromboxane A2 models from glucose
title_full Synthesis of thromboxane A2 models from glucose
title_fullStr Synthesis of thromboxane A2 models from glucose
title_full_unstemmed Synthesis of thromboxane A2 models from glucose
title_sort synthesis of thromboxane a2 models from glucose
publishDate 1997
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086215_v303_n4_p417_Cirelli
http://hdl.handle.net/20.500.12110/paper_00086215_v303_n4_p417_Cirelli
_version_ 1768545308516548608