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72785-28-5

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72785-28-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72785-28-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,8 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 72785-28:
(7*7)+(6*2)+(5*7)+(4*8)+(3*5)+(2*2)+(1*8)=155
155 % 10 = 5
So 72785-28-5 is a valid CAS Registry Number.

72785-28-5Relevant articles and documents

SYNTHESIS OF GALANTHAMINE AND RELATED ALKALOIDS - NEW APPROARCHES. I.

Vlahov, Radoslav,Krikorian, Dikran,Spassov, Grigor,Chinova, Maja,Vlahov, Ioncho,et al.

, p. 3329 - 3346 (2007/10/02)

Modifications of protecting groups and of the oxidative coupling conditions led to pure crystalline intermediates in the synthesis of galanthamine derivatives and gave dienone A in better yields than reported before.The E-configuration of amide 3' in crystalline state has been determined by X-ray diffraction.Streptomyces affinis 6737 reduces A to the optically active (-)-epigalanthamine derivative C, whose absolute configuration was determined by Bijvoet's method.Nematospora corylii CBS 2608 reduces to racemic B.With Ashbya gossypii IFO 1355 a mixture of racemic B and of optically active C is obtained.Some other microbial transformations are described.

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