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949090-28-2

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949090-28-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 949090-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,9,0,9 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 949090-28:
(8*9)+(7*4)+(6*9)+(5*0)+(4*9)+(3*0)+(2*2)+(1*8)=202
202 % 10 = 2
So 949090-28-2 is a valid CAS Registry Number.

949090-28-2Relevant articles and documents

Scalable Total Synthesis of (+)- And (-)-Codonopiloneolignanin A via Ti(IV)/NHC Cooperative Control Highly Enantioselective Dimerization of Multisubstituted Cinnamaldehyde

Li, Xiangxin,Yong, Huaya,Fan, Xiaohong,Zheng, Yajuan,Wang, Zhen,Xie, Zhixiang

supporting information, p. 6573 - 6577 (2021/08/18)

The first gram-scale asymmetric total synthesis of (+)- and (-)-codonopiloneolignanin A has been achieved from multisubstituted cinnamaldehyde in four steps with 37% overall yield. The synthetically challenging tricyclic [5, 3, 0, 03,8] decane skeleton was efficiently constructed via a highly enantioselective dimerization of multisubstituted cinnamaldehyde, followed by a sequence of cascade reactions including Prins cyclization, cation mediated cyclization, and deprotection. Furthermore, the scope of NHC-catalyzed/Ti(IV)-mediated synergistic control multisubstituted cinnamaldehyde dimerization was investigated. Significantly, the bioactivity of codonopiloneolignanin A and its enantiomer, particularly scarce in nature, was tested and showed good anticancer activity.

CYCLOPROPANE COMPOUND

-

Page/Page column 151-152, (2012/04/23)

A cyclopropane compound represented by the following formula (A) or a pharmaceutically acceptable salt thereof has orexin receptor antagonism, and therefore has a potencial of usefulness for the treatment of sleep disorder for which orexin receptor antagonism is effective, for example, insomnia: wherein Q represents —CH— or a nitrogen atom, R1a and R1b each independently represent a C1-6 alkyl group and the like, R1c represents a hydrogen atom and the like, R2a, R2b, R2c and R2d each independently represent a hydrogen atom, a halogen atom, a C1-6 alkyl group and the like, R3a, R3b and R3c each independently represent a hydrogen atom, a halogen atom and the like, and R3d represents a hydrogen atom and the like.

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