22529-61-9Relevant articles and documents
A Glucose-Derived α-Hydroxy Aldehyde for the Petasis Reaction: Facile Access to Polyfunctional δ-Amino Acids
Lenci, Elena,Bellini Puglielli, Raffaele,Bucaletti, Elisabetta,Innocenti, Riccardo,Trabocchi, Andrea
, p. 4227 - 4234 (2020)
The multicomponent Petasis borono-Mannich reaction proceeds via an imine with the boronic acid acting as the nucleophile for the preparation of amines and their derivatives, including amino acids. In view of the expansion of the poorly-exploited carbohydr
Synthesis and Glycosylation Properties of C6-Silylated Ido- and Gluco-Pyranosyl Donors
álvarez-Martínez, Ignacio,Pedersen, Christian Marcus
, (2020/07/24)
Silyl groups are widely used as alcohol protecting groups and their study has provided insight on some very remarkable structure and reactivity features within carbohydrate chemistry. However, not much work has been put into the effect on the reactivity of silyl groups directly attached to the sugar carbon chain. In this work, we have developed a synthetic methodology to obtain both d-glucosyl and l-idosyl donors containing a dimethylphenylsilyl group directly attached to C6. Glycosylation and competition experiments with different glycosyl acceptors have shown that this group is completely stable under glycosylation conditions and enhances reactivity beyond what a benzyl group attached to the sugar oxygen would do. Finally, we found adequate conditions for the protodesilylation of Si-containing glycosides to yield the 6-deoxy sugar analog.
Gram-level total synthesis method of sulfur onium salt type natural product neoponkoranol extracted from salacia plants
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Paragraph 0033; 0034; 0035; 0036, (2019/02/19)
The invention belongs to the field of chemical synthesis and particularly relates to a gram-level total synthesis method of a sulfur onium salt type natural product neoponkoranol with hypoglycemic activity extracted from salacia plants. According to the m