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1333318-85-6

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1333318-85-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1333318-85-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,3,3,1 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1333318-85:
(9*1)+(8*3)+(7*3)+(6*3)+(5*3)+(4*1)+(3*8)+(2*8)+(1*5)=136
136 % 10 = 6
So 1333318-85-6 is a valid CAS Registry Number.

1333318-85-6Downstream Products

1333318-85-6Relevant articles and documents

A unified strategy for the synthesis of (-)-maoecrystal Z, (-)-trichorabdal A, and (-)-longikaurin E

Yeoman, John T.S.,Cha, Jacob Y.,Mak, Victor W.,Reisman, Sarah E.

, p. 4070 - 4088 (2014/06/09)

Herein we describe in full our investigations that led to the completion of the first total syntheses of (-)-maoecrystal Z, (-)-trichorabdal A, and (-)-longikaurin E. The unified strategy employs a TiIII-mediated reductive epoxide coupling to rapidly prepare a key spirolactone. Highly diastereoselective SmII-mediated reductive cyclizations and a Pd II-mediated oxidative cyclization enable the construction of three architecturally distinct ent-kauranoid frameworks from this common intermediate.

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