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118545-28-1

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118545-28-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118545-28-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,5,4 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 118545-28:
(8*1)+(7*1)+(6*8)+(5*5)+(4*4)+(3*5)+(2*2)+(1*8)=131
131 % 10 = 1
So 118545-28-1 is a valid CAS Registry Number.

118545-28-1Downstream Products

118545-28-1Relevant articles and documents

NIS/TMSOTf-Promoted Glycosidation of Glycosyl ortho-Hexynylbenzoates for Versatile Synthesis of O-Glycosides and Nucleosides

Liu, Rongkun,Hua, Qingting,Lou, Qixin,Wang, Jiazhe,Li, Xiaona,Ma, Zhi,Yang, You

, p. 4763 - 4778 (2021/04/06)

Glycosidation plays a pivotal role in the synthesis of O-glycosides and nucleosides that mediate a diverse range of biological processes. However, efficient glycosidation approach for the synthesis of both O-glycosides and nucleosides remains challenging in terms of glycosidation yields, mild reaction conditions, readily available glycosyl donors, and cheap promoters. Here, we report a versatile N-iodosuccinimide/trimethylsilyl triflate (NIS/TMSOTf)-promoted glycosidation approach with glycosyl ortho-hexynylbenzoates as donors for the highly efficient synthesis of O-glycosides and nucleosides. The glycosidation approach highlights the merits of mild reaction conditions, cheap promoters, extremely wide substrate scope, and good to excellent yields. Notably, the glycosidation approach performs very well in the construction of a series of challenging O- and N-glycosidic linkages. The glycosidation approach is then applied to the efficient synthesis of oligosaccharides via the one-pot strategy and the stepwise strategy. On the basis of the isolation and characterization of the departure species derived from the leaving group, a plausible mechanism of NIS/TMSOTf-promoted glycosidation of glycosyl ortho-hexynylbenzoates is proposed.

Ortho-(1-phenylvinyl)benzoate glycosylation donor, and preparation method and application thereof

-

Paragraph 0103; 0107-0109; 0118-0119, (2020/05/01)

The invention discloses an ortho-(1-phenylvinyl)benzoate glycosylation donor, and a preparation method and an application thereof in a glycosylation reaction. The ortho-(1-phenylvinyl)benzoate glycosylation donor is stable, is easy to prepare and store, and is widely applied to the construction of various oxygen glucosides and nucleoside (nitrogen glucoside) glycosidic bonds. The leaving group ofthe donor is an alkenyl ester, has a high activity, and can be combined with thioglycoside or n-pentenyl ether glucoside through a one-pot glycosylation reaction to synthesize oligosaccharide. The glycosylation reaction conditions are mild, and receptors sensitive to acid and electrophilic reagents can tolerate the glycosylation reaction conditions.

O,O-Dimethylthiophosphonosulfenyl bromide-silver triflate: A new powerful promoter system for the preactivation of thioglycosides

Peng, Peng,Ye, Xin-Shan

experimental part, p. 616 - 622 (2011/02/28)

O,O-Dimethylthiophosphonosulfenyl bromide (DMTPSB) in combination with silver triflate provides a powerful thiophilic promoter system. Both "armed" and "disarmed" thioglycoside glycosyl donors can be activated to form glycosidic linkages efficiently by th

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