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1501971-59-0

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1501971-59-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1501971-59-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,0,1,9,7 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1501971-59:
(9*1)+(8*5)+(7*0)+(6*1)+(5*9)+(4*7)+(3*1)+(2*5)+(1*9)=150
150 % 10 = 0
So 1501971-59-0 is a valid CAS Registry Number.

1501971-59-0Relevant articles and documents

Directed orthometalation and the asymmetric total synthesis of N -deoxymilitarinone A and torrubiellone B

Ding, Feiqing,William, Ronny,Leow, Min Li,Chai, Hua,Fong, Jacqueline Zi Mei,Liu, Xue-Wei

, p. 26 - 29 (2014/01/23)

A diverted total synthesis (DTS) approach to the total synthesis of pyridone alkaloids N-deoxymilitarinone A (8) and torrubiellone B (10) has been developed. The common intermediate 14 was first assembled by a dual directed orthometalation process using a methoxymethyl group as directed metalation group. Other crucial steps include the assembly of polyenes under aldol condensation for DTS using general and concise strategy and diastereoselective synthesis of the syn-dimethyl array by an Evans aldol reaction.

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