Fmoc-D-proline CAS 101555-62-8

1. The key intermediate in drug synthesis - the "master key" from antibiotics to anti-tumor drugs
Plays a pivotal role in the field of pharmaceuticals and chemical engineering, it is an important chiral intermediate for synthesizing various bioactive molecules and drugs.
1.1. Antibiotic synthesis
D-proline itself is an essential structural unit in the molecular skeleton of many antibiotics. Taking columnar crystal white mold (guitarimycin) as an example, its molecule contains a proline derivative structure. It can be used as a starting material for the synthesis of novel macrolide antibiotics and semi synthetic antibiotics.

And can construct complex drug molecular frameworks through the flexible reactivity of its carboxyl and amino groups.

2. Development of anti-tumor drugs
D-proline derivatives are widely used in the development of anti-tumor drugs to construct compounds with specific biological activities. Through asymmetric synthesis strategy, a series of peptide drugs and small molecule compounds with anti-tumor activity can be prepared using it as a chiral source. Its unique pyrrolidine ring structure can simulate specific conformations in proteins and form high affinity binding with target proteins.

3. Synthesis of antiviral drugs
Similarly, it is also an important precursor for synthesizing antiviral drugs. D-configured amino acids have special advantages in antiviral peptide design - viral proteases have lower efficiency in cleaving peptide bonds composed of D-amino acids, thereby endowing drugs with stronger antiviral activity and longer duration of action.

4. Synthesis of β - carotene and retinal
Of particular note is that D-proline can also be used for the synthesis of β - carotene and retinal. Retinal is the active form of vitamin A, playing a central role in visual function, cell differentiation, and immune regulation.

2. The "star reagent" in the field of chiral chemistry - a powerful tool for separating agents and asymmetric synthesis
With its clear chiral center, it has a wide range of applications in the field of chiral chemistry.
2.1. Chiral separating agent
D-proline, also known as D-pyrrolidine-2-carboxylic acid, is an important chiral compound that can be used as a separating agent and chiral reagent. In the process of racemic separation, non enantiomeric salts can be formed with the target racemic amine or acid.

And their solubility differences can be utilized to achieve efficient separation. This method is easy to operate and cost-effective, making it a classic strategy for industrial grade chiral separation.

2.2. Asymmetric catalysis
In the field of asymmetric synthesis, proline and its derivatives are one of the most classic organic small molecule catalysts. Preserving the catalytic active center of proline - its secondary amine structure can activate carbonyl compounds through enamine intermediates, achieving high enantioselectivity in Aldol reactions, Mannich reactions, Michael addition, etc.

The famous Hajos Paris Der Sauer Wiechert reaction and List Barbas CBS reduction reaction, both catalyzed by proline, exhibit astonishing stereospecificity. Fmoc-D-proline adds a Fmoc protecting group on this basis, making it more operationally flexible in multi-step synthesis.

2.3. Chiral drug intermediates
By synthesizing asymmetric D-proline, compounds with specific biological activities can be prepared for drug research and development. With the continuous deepening of drug research and development, it is expected to be applied in the preparation of new chiral drugs or the improvement of existing drug synthesis processes.

3. Versatile in Organic Synthesis - From Catalysts to Flavoring Agents
3.1. Organic reaction catalyst
Proline and its derivatives typically act as asymmetric catalysts in organic reactions. The catalytic aldol condensation reaction of proline in CBS reduction reaction is the most prominent example. On this basis, with the introduction of Fmoc groups, its solubility and reaction selectivity are further optimized, and it can be used as an efficient catalyst in hydrogenation, polymerization, hydrolysis and other reactions, with outstanding characteristics such as strong activity and good stereospecificity.

3.2. Flavoring agents and food industry

A little-known but highly commercially valuable use is that when heated with sugars, an amino carbonyl reaction (Maillard reaction) can occur, producing substances with a unique aroma. This characteristic makes it suitable for use as a flavor enhancer in the food industry. In addition, during the brewing process, proteins rich in proline and bound to polyphenols can produce specific haze (turbidity), which affects the sensory quality of the wine.

3. Raw materials for the synthesis of cholesterol ester inhibitors
It is still a synthetic raw material for cholesterol ester inhibitors, which has potential application value in the development of cardiovascular disease-related drugs.

4. Nutritional Science and Energy Supplements - From Exercise to Stress Resistance
Amino acids and amino acid derivatives have been commercialized as energy supplements. Research has shown (Luckose F, et al., Crit Rev Food Sci Nutr. 2015; 55 (13): 1793-1814) that they can:
Affects the secretion of synthetic metabolic hormones: promotes the release of growth hormone and insulin-like growth factor, which is beneficial for muscle protein synthesis.

Optimize fuel supply during exercise: During high-intensity exercise, proline can serve as an alternative energy substance.

Providing electrons to the ubiquinone reservoir through the PRODH (proline dehydrogenase) pathway, supporting oxidative phosphorylation to produce ATP.

Enhancing mental performance: During stress-related tasks, amino acid derivatives can improve cognitive function and attention.
Preventing muscle damage caused by exercise: Proline has the ability to alleviate oxidative stress, increase superoxide dismutase (SOD) activity, reduce malondialdehyde levels, and protect muscle cells from free radical attacks.

In animal husbandry, the nutritional and physiological functions of proline are also highly concerned. Research has shown that proline can alleviate oxidative stress in the body, participate in energy metabolism, regulate immunity, promote protein synthesis, and improve animal growth and reproductive performance. Adding appropriate amounts of proline to the diet in pigs, chickens, and aquaculture can significantly improve the antioxidant capacity and growth performance of animals. Although mainly used for scientific research, its parent D-proline has broad application prospects in the field of animal nutrition.

5. Enamel Restoration and Biomaterials Research: Frontier Exploration

According to the latest research from the University of Illinois, the repetitive sequence of proline plays a crucial structural role in enamel proteins. The longer the proline repeat segment is, the larger the protein foam is, the more perfect the enamel prism structure is, and the stronger and more elastic the teeth are. This discovery provides a theoretical basis for designing new artificial tooth enamel, and as a protective derivative of proline, it has significant tool value in the synthesis research of related biomaterials.

In addition, proline also plays an important role in the study of the structure and function of natural proteins such as antifreeze proteins, amyloid proteins, and prion proteins. Provided high-purity research materials for these cutting-edge topics.