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8-methyl-1,3-diphenyl-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione is a complex organic compound with a molecular formula of C21H20N4O2. It is a derivative of pyrido[2,3-d]pyrimidine, a heterocyclic compound with a pyridine and pyrimidine ring fused together. The structure features a tetrahydro ring, a methyl group at the 8th position, and two phenyl groups attached to the 1st and 3rd positions. The compound also has two carbonyl groups at the 2nd and 4th positions, which are part of the 1H and 3H tautomeric forms. This chemical is known for its potential applications in medicinal chemistry, particularly as a precursor or intermediate in the synthesis of various biologically active molecules. Its specific properties and reactivity make it a subject of interest for researchers in the field of drug development and chemical synthesis.

40750-27-4

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40750-27-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40750-27-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,5 and 0 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40750-27:
(7*4)+(6*0)+(5*7)+(4*5)+(3*0)+(2*2)+(1*7)=94
94 % 10 = 4
So 40750-27-4 is a valid CAS Registry Number.

40750-27-4Downstream Products

40750-27-4Relevant academic research and scientific papers

Ketene-S,N-acetals as Synthetic Intermediates for Heterocycles. Reaction of Ketene-S,N-acetals with Aryl Isocyanates

Takahata, Hiroki,Nakajima, Tomoko,Nakano, Masaharu,Tomiguchi, Akira,Yamazaki, Takao

, p. 4299 - 4308 (2007/10/02)

Reaction of ketene-S,N-acetals (1-6), which are useful synthetic intermediates for heterocycles, with aryl isocyanates (7) is described.Annulation of 1-3 and 4-6 with 7 in boiling toluene gave bicyclic (8-10) and monocyclic (11-13) uracil derivatives, res

ACTIVATED LACTAMS: REACTION OF KETENE-S,N-ACETALS WITH ARYL ISOCYANATES

Takahata, Hiroki,Nakano, Masaharu,Tomiguhi, Akira,Yamazaki, Takao

, p. 413 - 416 (2007/10/02)

Reaction of ketene-S,N-acetals (1, 2, and 3) as activated lactams with aryl isocyanates (4a-d) has been described.The vinylogous ureas (6a-d and 7a-d) obtained by this reaction have been utilized as intermediates for the synthesis of some uracil derivatives.

Lactam Acetals : Part III - Reactions with Aryl Isocyanates and Aryl Isothiocyanates

Singh, Jujhar,Virmani, Vinod,Jain, Padam C.,Anand, Nitya

, p. 195 - 198 (2007/10/02)

Lactam acetals (1-3) react readily with aryl isothiocyanates to form 1,3-diaryl-2,4-dithioxo-N-alkyl-azacycloalkanopyrimidines (6-11).With aryl isocyanates the products formed are dependent upon the ring size of the lactam acetal: 1-methyl-2,2-dime

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