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915396-55-3

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915396-55-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 915396-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,5,3,9 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 915396-55:
(8*9)+(7*1)+(6*5)+(5*3)+(4*9)+(3*6)+(2*5)+(1*5)=193
193 % 10 = 3
So 915396-55-3 is a valid CAS Registry Number.

915396-55-3Relevant articles and documents

Synthesis of Weinreb amides using diboronic acid anhydride-catalyzed dehydrative amidation of carboxylic acids

Shimada, Naoyuki,Takahashi, Naoya,Ohse, Naoki,Koshizuka, Masayoshi,Makino, Kazuishi

supporting information, p. 13145 - 13148 (2020/11/09)

The first successful example of the direct synthesis of Weinreb amides using catalytic hydroxy-directed dehydrative amidation of carboxylic acids using the diboronic acid anhydride catalyst is described. The methodology is applicable to the concise syntheses of eight α-hydroxyketone natural products, namely, sattabacin, 4-hydroxy sattabacin, kurasoins A and B, soraphinols A and B, and circumcins B and C.

Concise, protecting group free total syntheses of (+)-sattabacin and (+)-4-hydroxysattabacin

Aronoff, Matthew R.,Bourjaily, Neil A.,Miller, Kenneth A.

supporting information; experimental part, p. 6375 - 6377 (2011/01/03)

The first asymmetric total syntheses of the antiviral natural products (+)-sattabacin and (+)-4-hydroxysattabacin are reported. Both total syntheses are remarkably concise and were completed without the use of protecting groups. These syntheses allowed the unambiguous assignment of the absolute configuration of both natural products. The syntheses of these natural products, which exhibit marked antiviral activity, are readily amenable to the preparation of structural analogs and progress in this regard is also reported.

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