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543690-37-5

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543690-37-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 543690-37-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,3,6,9 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 543690-37:
(8*5)+(7*4)+(6*3)+(5*6)+(4*9)+(3*0)+(2*3)+(1*7)=165
165 % 10 = 5
So 543690-37-5 is a valid CAS Registry Number.

543690-37-5Downstream Products

543690-37-5Relevant articles and documents

Total Synthesis of All Four Isomers of cis-1,2-Dihydroxypyrrolizidine

Casiraghi, Giovanni,Spanu, Pietro,Rassu, Gloria,Pinna, Luigi,Ulgheri, Fausta

, p. 2906 - 2909 (1994)

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A stereoselective approach to indolizidine and pyrrolizidine alkaloids: Total synthesis of (-)-lentiginosine, (-)-epi-lentiginosine and (-)-dihydroxypyrrolizidine

Kauloorkar, Shruti Vandana,Jha, Vishwajeet,Jogdand, Ganesh,Kumar, Pradeep

, p. 4454 - 4460 (2014/06/23)

A simple and highly efficient approach to hydroxylated pyrrolizidine and indolizidine is developed from an aldehyde as a starting material using organocatalytic and asymmetric dihydroxylation reactions as key steps. Its application to the total synthesis of (-)-lentiginosine, (-)-epi-1,2- lentiginosine and (-)-dihydroxypyrrolizidine is also reported. the Partner Organisations 2014.

A facile synthesis of lentiginosine analogues based on a highly regio- and diastereoselective allylic amination using chlorosulfonyl isocyanate

Kim, In Su,Li, Qing Ri,Dong, Guang Ri,Kim, Yoo Chang,Hong, Yeon Ju,Lee, Momi,Chi, Ki-Whan,Oh, Joa Sub,Jung, Young Hoon

experimental part, p. 1569 - 1573 (2010/06/15)

The concise synthesis of the lentiginosine analogues pyrrolidine alkaloid 2 and pyrroloazepine alkaloid 3 has been achieved from, inexpensive and. readily available D-lyxose. The key steps in the synthesis included, regio- and diastereoselective amination

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