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132168-97-9

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132168-97-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132168-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,1,6 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 132168-97:
(8*1)+(7*3)+(6*2)+(5*1)+(4*6)+(3*8)+(2*9)+(1*7)=119
119 % 10 = 9
So 132168-97-9 is a valid CAS Registry Number.

132168-97-9Downstream Products

132168-97-9Relevant articles and documents

POTENTIAL CHOLINERGIC AND ANTICHOLINERGIC COMPOUNDS: SYNTHESIS OF 2,8-SUBSTITUTED 2,8-DIAZASPIRODECANE-1,3-DIONES

Valenta, Vladimir,Holubek, Jiri,Svatek, Emil,Protiva, Miroslav

, p. 2304 - 2316 (2007/10/02)

Heating the ammonium salt of (4-carboxy-1-methyl-4-piperidinyl)acetic acid (XII) gave 8-methyl-2,8-diazaspirodecane-1,3-dione (II) which was N-alkylated with 2-bromoethanol and 4-bromobutanol to give the alcohols III and V.Compound III was transformed to the chloro compound VI which was reacted with the sodium salt of hexahydrobenzilic acid to give the ester VII.Compound V was transformed to the 4-toluenesulfonic ester VIII which reacted with 1-(2-pyrimidinyl)piperazine and gave IX. 2-(2-Propyl)-2,8-diazaspirodecane-1,3-dione (XVIII) was similarly transformed via XIX to XX which reacted with the sodium salts of diphenylacetic, benzilic, hexahydrobenzilic, and (2-oxo-1-pyrrolidinyl)acetic acid to give the esters XXI-XXIV.The esters VII and XXI-XXIV were transformed to the methiodides.The compounds prepared were tested in the lines of activity of the analogous "RS-86" (I) but proved inactive.

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