256521-61-6 Usage
General Description
1,3-dimethyl-5,7-dimorpholin-4-yl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-8-ium is a complex and highly specific chemical compound with a long and complex molecular structure. It belongs to the class of pyrimidine compounds and contains a positively charged ion at its 8th position. The compound contains two morpholine groups, which are six-membered heterocyclic rings with two nitrogen atoms, and two methyl groups. Its molecular structure also includes a pyrido ring and two dioxo groups. 1,3-dimethyl-5,7-dimorpholin-4-yl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidin-8-ium could have potential applications in medicinal chemistry and drug development due to its unique structure and functional groups.
Check Digit Verification of cas no
The CAS Registry Mumber 256521-61-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,5,2 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 256521-61:
(8*2)+(7*5)+(6*6)+(5*5)+(4*2)+(3*1)+(2*6)+(1*1)=136
136 % 10 = 6
So 256521-61-6 is a valid CAS Registry Number.
256521-61-6Relevant articles and documents
Synthesis of 5-mono- and 5,7-diamino-pyrido[2,3-d]-pyrimidinediones with potential biological activity by regioselective amination
Van Tinh, Dang,Stadibauer, Wolfgang
, p. 821 - 829 (2008/09/21)
(Chemical Equation Presented) 5-Alkyl/arylamino- and 5,7-dialkyl/arylamino- pyrido[2,3-d]pyrimidine-2,4-diones (4,5, 7-9) were prepared from the corresponding 5,7-dichloro-pyrido[2,3-d]pyrimidine-2,4-diones 2 with aliphatic and aromatic amines 3 and 6 in a regioselective reaction. The 7-monoazides 10, obtained by azidation of 5-amino-7-chloro derivatives 4, were converted to iminophosphoranes by reaction with triphenylphosphane via Staudinger reaction. Hydrolysis with aqueous acetic acid produced in one step 7-unsubstituted-amino- pyrido[2,3-d]pyrimidine-2,4-diones 12. In a similar amination reaction, 5-chloropyrido[2,3-d]pyrimidine-2,4,7-triones 13 were aminated and formylated to 5-alkyl/arylamino-6-formyl derivatives 14-16 in a combined one-step-reaction with bulky arylamines or alkylamines in the presence of dimethylformamide.