Journals / Turkish Journal of Biology / 2010 / Cilt: 34 - Sayı: 1

Mikrobiyal üreme ortamında koç boynuz peptonu kullanılarak Alternaria alternata tarafından (S)-2'-florofeniletan-1-ol ve (S)-3'-florofeniletan-1-ol üretimi

Production of (S)-2'-fluorophenylethan-1-ol and (S)-3'- fluorophenylethan-1-ol by Alternaria alternata using ram horn peptone in microbial growth medium

Pages
39–46
Publication Date
2022-10-17
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results showed that the yields with >99% enantiomeric excess (ee) of both 1b and 2b reached 75% for 1b and 66% for 2b.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Enantiomerically pure, fluorinated compounds have an important role in medicinal chemistry.
📊
Key Findings & Data:Alternaria alternata isolates were used for the synthesis of (S)-2'-fluorophenylethan-1-ol 1b and (S)-3'-fluorophenylethan-1-ol 2b.
💡
Conclusion & Impact:The results showed that the yields with >99% enantiomeric excess (ee) of both 1b and 2b reached 75% for 1b and 66% for 2b.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Enantiomerically pure, fluorinated compounds have an important role in medicinal chemistry. Alternaria alternata isolates were used for the synthesis of (S)-2'-fluorophenylethan-1-ol 1b and (S)-3'-fluorophenylethan-1-ol 2b. Biocatalytic syntheses of optically active 1b and 2b were achieved by asymmetric reduction of 2'-fluoroacetophenone 1a and 3'-fluoroacetophenone 2a in the batch culture of A. alternata containing ram horn peptone (RHP). The reaction conditions (pH, temperature, and agitation) that improve the conversion of the substrates were studied. The optimal reaction conditions were found as pH 6.0, agitation 250, temperature 32 °C and substrate 3 mmol/100 mL. The gram scale productions of 1b and 2b by the most effective biocatalyst A. alternata EBK-6 using RHP was carried out in a fermenter with 1-L working volume. The results showed that the yields with >99% enantiomeric excess (ee) of both 1b and 2b reached 75% for 1b and 66% for 2b. The concentrations of products 1b and 2b at the end of fermentation were 3.1 g/L and 2.8 g/L, respectively. As a result, 2 important chiral intermediates for the pharmaceutical industry using A. alternata EBK-6 in the submerged culture containing RHP from waste material were scaled up to gram scale with excellent ee.

Özet

Enantiyomerik olarak saf florlu bileşikler tıbbi kimyada önemli bir role sahiptir. Alternaria alternata izolatları (S)- 2'-florofeniletan-1-ol 1b ve (S)-3'-florofeniletan-1-ol 2b’nin sentezinde kullanılmıştır. Optik olarak aktif 1b ve 2b’nin biyokatalitik sentezleri koç boynuz peptonu (KBP) ihtiva eden A. alternata’nın sıvı kültüründe 2'-floroasetopepton 1a ve 3'-floroasetopepton 2a’nın asimetrik indirgenmesiyle başarılmıştır. Substratların dönüşümünü artırmak için pH, sıcaklık ve çalkalama gibi reaksiyon şartları çalışılmıştır. Optimal reaksiyon şartları pH 6,0, çalkalama 250, sıcaklık 32 °C ve substrat 3 mmol/100 mL olarak bulundu. KBP kullanılarak en etkili biyokatalist A. alternata EBK-6 tarafından 1b ve 2b’nin gram miktarda üretimleri 1 L çalışma hacmine sahip fermentörde gerçekleştirilmiştir. Sonuçlar hem 1b ve hem de 2b’nin % 99 enantiyomerik selektivite (es) ile verimleri 1b için % 75 ve 2b için % 66’ya ulaştığını göstermiştir. Fermentasyon sonunda 1b ve 2b ürünlerinin konsantrasyonları sırasıyla 3,1 g/L ve 2,8 g/L olarak bulunmuştur. Sonuç olarak, atık materyalden üretilen KBP ihtiva eden sıvı kültürde A. alternata EBK-6 kullanımıyla ilaç endüstrisi için iki önemli kiral bileşik mükemmel es ile gram miktara kadar üretilmiştir.

🔖

Cite This Article

ZILBEYAZ, K., KURBANOĞLU, N. İ., KURBANOĞLU, E. B. (2022). Mikrobiyal üreme ortamında koç boynuz peptonu kullanılarak Alternaria alternata tarafından (S)-2'-florofeniletan-1-ol ve (S)-3'-florofeniletan-1-ol üretimi. Turkish Journal of Biology, Cilt: 34 - Sayı: 1, 39–46. https://ajindex.com/articles/600495

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (16)

  1. Gladysz JA, Curran DP, Horvath IT. Handbook of fluorous chemistry, Wiley-VCH, Weinheim, 2004
  2. Kirsch P. Modern Fluoroorganic Chemistry, Synthesis Reactivity, Applications, Wiley-VCH, Weinheim, 2004
  3. Kurbanoglu EB, Zilbeyaz K, Kurbanoglu NI et al. Enantioselective reduction of substituted acetophenones by Aspergillus niger. Tetrahedron: Asym 18: 1159-1162, 2007
  4. Singh RP, Twamley B, Fabry-Asztalos L et al. Efficient syntheses of fluorinated aryl alcohols of high enantiomeric purity via boronic esters. J Org Chem 65: 8123-8125, 2000
  5. Garrett CE, Prasad K, Repic O et al. The enantioselective reduction of 2'-fluoroacetophenone utilizing a simplified CBSreduction procedure. Tetrahedron: Asym 13: 1347-1349, 2002
  6. Groger H, Rollmann C, Chamouleau F et al. Enantioselective reduction of 4-fluoroacetophenone at high substrate concentration using a tailor-made recombinant whole-cell catalyst. Adv Synth Catal 349: 709-712, 2007
  7. Soni P, Banerjee U.C. Enantioselective reduction of acetophenone and its derivatives with a new yeast isolate Candida tropicalis PBR-2 MTCC 5158. Biotechnol J 1: 80-85, 2006
  8. Nakamura K, Matsuda T. Asymmetric reduction of ketones by the acetone powder of Geotrichum candidum. J Org Chem 63: 8957-8964, 1998
  9. Lee B, Pometto AL, Demirci A et al. Media evaluation for the production of microbial enzymes. J Agric Food Chem 46: 4775- 4778, 1998
  10. Kurbanoglu EB, Zilbeyaz K, Kurbanoglu NI et al. Highly enantioselective reduction of acetophenone by locally isolated Alternaria alternata using ram horn peptone. Tetrahedron: Asym 18: 1529-1532, 2007
  11. Kurbanoglu EB, Kurbanoglu NI. Ram horn peptone as a source of citric acid production by Aspergillus niger, with a process. J Ind Microbiol Biotechnol 131: 289-294, 2004
  12. Kurbanoglu EB. Enhancement of glycerol production with ram horn hydrolysate by yeast. Energy Conv Mngt 44: 2125-2133, 2003
  13. Kurbanoglu EB, Algur OF, Zulkadir A. Submerged production of edible mushroom Agaricus bisporus mycelium in ram horn hydrolysate. Ind Crop Prod 19: 225-230, 2004
  14. Kurbanoglu EB, Kurbanoglu NI. Production of citric acid from ram horn hydrolysate by Aspergillus niger. Process Biochem 38: 1421-1424, 2003
  15. Kurbanoglu EB, Zilbeyaz K. Kurbanoglu NI et al. Asymmetric reduction of acetophenone analogues by Alternaria alternata using ram horn peptone. Tetrahedron: Asym 18: 2332-2335, 2007
  16. Nie Y, Xu Y, Mu XQ. Highly enantioselective conversion of racemic 1-phenyl-1,2-ethanediol b