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185038-85-1

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185038-85-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185038-85-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,0,3 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 185038-85:
(8*1)+(7*8)+(6*5)+(5*0)+(4*3)+(3*8)+(2*8)+(1*5)=151
151 % 10 = 1
So 185038-85-1 is a valid CAS Registry Number.

185038-85-1Relevant articles and documents

Total synthesis of virgatolide b via exploitation of intramolecular hydrogen bonding

Hume, Paul A.,Furkert, Daniel. P.,Brimble, Margaret A.

, p. 5269 - 5281 (2014/06/23)

A full account of the enantioselective total synthesis of virgatolide B is reported. Key features of the synthesis include an sp3-sp2 Suzuki-Miyaura cross-coupling of a β-trifluoroboratoamide with an aryl bromide, regioselective intramolecular carboalkoxylation, and a 1,3-anti-selective Mukaiyama aldol reaction. Intramolecular hydrogen bonding governed the regioselectivity of the key spiroketalization step, affording the natural product as a single regioisomer.

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