70671-47-5 Usage
General Description
"(2R,3S)-3-amino-2-hydroxybutanoic acid" is a chemical compound with the molecular formula C4H9NO3. It is an amino acid with a unique stereochemistry, specifically in the (2R,3S) configuration. (2R,3S)-3-amino-2-hydroxybutanoic acid is also known as threonine, and it is an essential amino acid in humans, meaning it must be obtained from the diet. Threonine plays a crucial role in the synthesis of proteins and is involved in various cellular processes, including maintaining proper immune system function and supporting healthy heart, liver, and nervous system function. Additionally, it is a precursor to other amino acids and important compounds in the body. Threonine can be found in a variety of foods, including meat, dairy products, and leafy green vegetables.
Check Digit Verification of cas no
The CAS Registry Mumber 70671-47-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,6,7 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70671-47:
(7*7)+(6*0)+(5*6)+(4*7)+(3*1)+(2*4)+(1*7)=125
125 % 10 = 5
So 70671-47-5 is a valid CAS Registry Number.
70671-47-5Relevant articles and documents
Improved stereoselectivity in intramolecular SN2′ cyclization through use of mechanistic principles
Woo, Duck Seo,Curtis-Long, Marcus J.,Seong, Hun Jeong,Tae, Hong Jun,Min, Suk Yang,Ki, Hun Park
, p. 209 - 214 (2007/10/03)
Valine and alanine were converted into the corresponding α-hydroxy-β-amino acids through intramolecular SN2′ cyclization. The novel cyclization protocol relied upon the use of N-benzyl-protected carbamates derived from α-amino acids. Georg Thie
Stereocontrolled asymmetric synthesis of α-hydroxy-β-amino acids. A stereodivergent approach
Aoyagi,Jain,Williams
, p. 3472 - 3477 (2007/10/03)
The stereocontrolled asymmetric synthesis of α-hydroxy-β-amino acids has been investigated via the Lewis acid-promoted cyanation of (5R,6S)-2-acetoxy-4-(benzyloxycarbonyl)-5, 6-diphenyl-2,3,5,6-tetrahydro-4H-1,4-oxazines with trimethylsilyl cyanide. Base-
Synthesis of 'D-Isothreonine' and 'L-Alloisothreonine' Starting form L-Alanine
Wolf, Jean-Pierre,Pfander, Hanspeter
, p. 116 - 120 (2007/10/02)
Starting from L-alanine, 'D-isothreonine' (=(2R,3S)-3-amino-2-hydroxybutanoic acid) and 'L-alloisothreonine' (=(2S,3S)-3-amino-2-hydroxybutanoic acid) were synthesized.
