137368-89-9 Usage
Structure
Ethyl ester derivative of 1H-Pyrazolo[4,3-c]pyridine-6-carboxylic acid, structurally related to pyrazole and pyridine
Pharmaceutical interest
Potential biological activities and medicinal properties
Building block
Can be used in the synthesis of various pharmaceutical agents
Applications
May have applications in drug discovery and development
Further research
Necessary to fully understand the potential uses and effects of this chemical compound.
Check Digit Verification of cas no
The CAS Registry Mumber 137368-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,3,6 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137368-89:
(8*1)+(7*3)+(6*7)+(5*3)+(4*6)+(3*8)+(2*8)+(1*9)=159
159 % 10 = 9
So 137368-89-9 is a valid CAS Registry Number.
137368-89-9Relevant academic research and scientific papers
Pyrido annelation reaction by a tandem aza Wittig/electrocyclic ring-closure strategy: Preparation of pyrazolo[4,3-c]- and pyrazolo[3,4-c]pyridine derivatives
Molina,Aller,Lorenzo
, p. 6737 - 6746 (2007/10/02)
The aza Wittig-type reaction of iminophosphorane 3, prepared from 5-formyl-1-phenylpyrazole by sequential treatment with ethyl azidoacetate and triphenylphosphine, with isocyanates, ketenes, aldehydes and carbon disulfide leads to the functionalized pyrazolo[4,3-c]pyridines 5, 7, 9 and 11 respectively. Iminophosphorane 15, prepared from 4-formyl-1-phenylpyrazole, undergoes pyrido annelation by reaction with ketenes to give the isomeric pyrazolo[3,4-c]pyridines 22 in modest yields.
