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327622-76-4

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327622-76-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 327622-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,7,6,2 and 2 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 327622-76:
(8*3)+(7*2)+(6*7)+(5*6)+(4*2)+(3*2)+(2*7)+(1*6)=144
144 % 10 = 4
So 327622-76-4 is a valid CAS Registry Number.

327622-76-4Relevant articles and documents

Simple, efficient chemoenzymatic synthesis of (s)-5-(tert-butyldimethylsilyloxy)-2-cyclohexenone and enantiomeric ketone intermediates of 19-nor-1α,25-dihydroxyvitamin D3

Kalkote, Uttam R.,Ghorpade, Sandeep R.,Chavan, Subhash P.,Ravindranathan

, p. 8277 - 8281 (2001)

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Multiselective enzymatic reactions for the synthesis of protected homochiral cis- and trans-1,3,5-cyclohexanetriols

Wirz, Beat,Iding, Hans,Hilpert, Hans

, p. 4171 - 4178 (2007/10/03)

For the synthesis of the potentially antipsoriatic vitamin D derivative 3 (Ro 65-2299) an efficient and multiselective enzymatic step had been developed in which the easily accessible trans-1,3,5-triacetoxy-cyclohexane 5 was selectively monohydrolyzed in the presence of the cis-isomer 8 to give (1R,3R)-1,3-diacetoxy-5-hydroxy-cyclohexane 6 in high enantiomeric excess (>99%) and yield (84%). Furthermore, for the synthesis of the enantiomer of 3, a simple and efficient enzymatic procedure for the asymmetric acetylation of cis-1,5-dihydroxy-3-(tert-butyldimethylsilanoxy)-cyclohexane 10 in an anhydrous organic solvent providing (1R,3S,5S)-1-acetoxy-3-hydroxy-5-(tert-butyldimethylsilanoxy)-cyclohexane 11 in >99% ee and quantitative yield is described. Copyright (C) 2000 Elsevier Science Ltd.

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