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488787-31-1

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488787-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 488787-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,8,7,8 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 488787-31:
(8*4)+(7*8)+(6*8)+(5*7)+(4*8)+(3*7)+(2*3)+(1*1)=231
231 % 10 = 1
So 488787-31-1 is a valid CAS Registry Number.

488787-31-1Relevant articles and documents

Umpolung Strategy for Arene C?H Etherification Leading to Functionalized Chromanes Enabled by I(III) N-Ligated Hypervalent Iodine Reagents

Mikhael, Myriam,Guo, Wentao,Tantillo, Dean J.,Wengryniuk, Sarah E.

, p. 4867 - 4875 (2021)

The direct formation of aryl C?O bonds via the intramolecular dehydrogenative coupling of a C?H bond and a pendant alcohol represents a powerful synthetic transformation. Herein, we report a method for intramolecular arene C?H etherification via an umpoled alcohol cyclization mediated by an I(III) N-HVI reagent. This approach provides access to functionalized chromane scaffolds from primary, secondary and tertiary alcohols via a cascade cyclization-iodonium salt formation, the latter providing a versatile functional handle for downstream derivatization. Computational studies support initial formation of an umpoled O-intermediate via I(III) ligand exchange, followed by competitive direct and spirocyclization/1,2-shift pathways. (Figure presented.).

Cannabidiol derivative as well as preparation method and medical application thereof

-

Paragraph 0092; 0096-0102, (2021/07/10)

The invention relates to a cannabidiol derivative and application thereof in medicine, in particular to a pyrimidine derivative as shown in a general formula (I), or a stereoisomer, a solvate, a metabolite, a prodrug, a pharmaceutically acceptable salt or a co-crystal thereof, and definition of each substituent in the general formula (I) is the same as that in the specification.

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