tert-Butyl (6R)-6-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate

Name: tert-Butyl (6R)-6-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate
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CAS No. 1639881-13-2
Cat. No. CS-0058080
Molecule weight237.30
Purity≥97%
MDL No.None

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tert-Butyl (6R)-6-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate|CS-0058080

Structure of 1639881-13-2

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General Information

CAS No. 1639881-13-2
Cat. No. CS-0058080
Purity ≥97%
MDL No. None
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₂H₁₉N₃O₂
Molecular Weight 237.30
Synonym(s) None
SMILES O=C(N1CC2=CC=NN2C[C@H]1C)OC(C)(C)C

Description

tert-Butyl (6R)-6-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate is a stereodefined heterocyclic building block featuring a chiral methyl group at the 6-position. This bench-stable derivative integrates seamlessly into synthetic routes requiring controlled stereochemistry and enhanced solubility in organic media. The tert-butyl ester facilitates straightforward deprotection under mild acidic conditions.

Application

tert-Butyl (6R)-6-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate serves as a stereochemically defined building block for the synthesis of pyrazolo[1,5-a]pyrazine scaffolds. Its tert-butyl ester group enables facile deprotection under mild acidic conditions, while the methyl substituent at the 6-position provides a key handle for further functionalization. The compound exhibits excellent bench stability and compatibility with standard coupling reactions, facilitating efficient access to diverse heterocyclic architectures in medicinal chemistry campaigns.

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501

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Computational Chemistry Data

TPSA 47.36
LogP 2.0223
H_Acceptors 4
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Building Blocks Skeleton Aliphatic heterocycle compounds Piperazine compounds

Building Blocks Skeleton Chiral compounds Chiral Building Blocks

Key Words

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tert-Butyl (6R)-6-methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate

CAS No. 1639881-13-2

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