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127665-77-4

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127665-77-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127665-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,6,6 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 127665-77:
(8*1)+(7*2)+(6*7)+(5*6)+(4*6)+(3*5)+(2*7)+(1*7)=154
154 % 10 = 4
So 127665-77-4 is a valid CAS Registry Number.

127665-77-4Relevant articles and documents

Concise Seven-Membered Oxepene/Oxepane Synthesis - Structural Motifs in Natural and Synthetic Products

Osei Akoto, Clement,Rainier, Jon D.

, p. 3529 - 3535 (2019/09/07)

This work outlines a suitable method for the synthesis of oxepane skeleton using iterative C-glycoside technology on the oxepene intermediate, which was synthesized utilizing Wilkinson's catalyst [Rh(PPh 3) 3 Cl] to generate the isom

Studies culminating in the total synthesis and determination of the absolute configuration of (-)-saudin

Boeckman Jr., Robert K.,Rosario Ferreira, Maria Rico Del,Mitchell, Lorna H.,Shao, Pengcheng,Neeb, Michael J.,Fang, Yue

, p. 9787 - 9808 (2012/02/05)

A full account of studies that culminated in the total synthesis of both antipodes and the assignment of its absolute configuration of Saudin, a hypoglycemic natural product. Two approaches are described, the first proceeding though bicyclic lactone intermediates and related second monocyclic esters. The former was obtained via asymmetric Diels-Alder cycloaddition and the latter by an asymmetric annulation protocol. Both approaches employ a Lewis acid promoted Claisen rearrangement, with the successful approach taking advantage of bidentate chelation to control the facial selectivity of the key Claisen rearrangement.

Divergent syntheses of resorcylic acid lactones: L-783277, LL-Z1640-2, and hypothemycin

Dakas, Pierre-Yves,Jogireddy, Rajamalleswaramma,Valot, Gaelle,Barluenga, Sofia,Winssinger, Nicolas

supporting information; experimental part, p. 11490 - 11497 (2010/04/28)

The resorcylic acid lactones (RAL) are endowed with diverse biological activity ranging from transcription factor modulators (zearalenone and zearalenol) to HSP90 inhibitors (radicicol and pochonin D) and reversible (aigialomycin D) as well as irreversibl

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