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1353844-73-1

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1353844-73-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1353844-73-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,3,8,4 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1353844-73:
(9*1)+(8*3)+(7*5)+(6*3)+(5*8)+(4*4)+(3*4)+(2*7)+(1*3)=171
171 % 10 = 1
So 1353844-73-1 is a valid CAS Registry Number.

1353844-73-1Downstream Products

1353844-73-1Relevant articles and documents

A general strategy for the highly stereoselective synthesis of HR22C16-like mitotic kinesin Eg5 inhibitors from both l- and d-tryptophans

Dong, Jing,Trieu, Tien Ha,Shi, Xiao-Xin,Zhang, Qiang,Xiao, Sen,Lu, Xia

, p. 1865 - 1873 (2012/01/05)

An efficient and general strategy for the highly stereoselective synthesis of HR22C16-like mitotic kinesin Eg5 inhibitors 1 from both l- and d-tryptophan methyl ester hydrohalides is described. (1R,3S)-trans-1,3-Disubstituted 1,2,3,4-tetrahydro-β-carbolines (1R,3S)-trans-2 could be obtained in high yields and with high stereoselectivities from the Pictet-Spengler reaction of l-tryptophan methyl ester hydrohalide with some 3-acyloxyl benzaldehydes via a CIAT (crystal induced asymmetric transformation) process, whereas (1R,3R)-cis-1,3-disubstituted 1,2,3,4-tetrahydro-β-carbolines (1R,3R)-cis-2 could also be obtained in high yields and with high stereoselectivities from a Pictet-Spengler reaction of d-tryptophan methyl ester hydrohalide with some other 3-acyloxyl benzaldehydes via a CIAT process. Both compounds (1R,3S)-trans-2 and (1R,3R)-cis-2 were efficiently converted into HR22C16-like mitotic kinesin Eg5 inhibitors 1 by the same one-pot procedure through tandem reactions. A total of eighteen target compounds 1 were obtained from six intermediate compounds 2 in 87-95% yields.

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