Cas 217944-58-6,(2S,4S,5S,6R)-1,7-Bis-benzyloxy-5-hydroxy-2,4,6-trimethyl-heptan-3-one

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Check Digit Verification of cas no

The CAS Registry Mumber 217944-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,9,4 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 217944-58:
(8*2)+(7*1)+(6*7)+(5*9)+(4*4)+(3*4)+(2*5)+(1*8)=156
156 % 10 = 6
So 217944-58-6 is a valid CAS Registry Number.

217944-58-6Upstream product

217944-58-6Downstream Products

217944-59-7 (4S,5R,6S)-4-((S)-2-Benzyloxy-1-methyl-ethyl)-6-((R)-2-benzyloxy-1-methyl-ethyl)-2,2-di-tert-butyl-5-methyl-[1,3,2]dioxasilinane

217944-58-6Relevant academic research and scientific papers

Stereoselective synthesis of an isomer of membrenone-C via an aldol based two directional chain extension

Perkins, Michael V.,Sampson, Rebecca A.

, p. 8367 - 8370 (1998)

An isomer of Membrenone-C was prepared in 8 steps (17% yield) with 93% overall ds starting from the ethyl ketone (S)-10. Key steps are the boron- mediated aldol followed by anti selective reduction, giving the C6-C10 stereochemistry,

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