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1394171-15-3

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1394171-15-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1394171-15-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,4,1,7 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1394171-15:
(9*1)+(8*3)+(7*9)+(6*4)+(5*1)+(4*7)+(3*1)+(2*1)+(1*5)=163
163 % 10 = 3
So 1394171-15-3 is a valid CAS Registry Number.

1394171-15-3Relevant articles and documents

The total synthesis of (-)-aplysin via a lithiation-borylation- propenylation sequence

Fletcher, Catherine J.,Blair, Daniel J.,Wheelhouse, Katherine M.P.,Aggarwal, Varinder K.

, p. 7598 - 7604 (2012/09/21)

A concise, highly enantioselective synthesis of sesquiterpene natural products (-)-debromoaplysin and (-)-aplysin has been completed. The key steps included lithiation-borylation of a secondary benzylic carbamate to give a tertiary boronic ester followed by propenylation which installed the quaternary stereocenter with complete enantioselectivity. Subsequent RCM followed by deprotection and in situ cyclization led to debromoaplysin with good diastereoselectivity from which the target compound was prepared in just eight overall steps.

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