Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari

Several Betulinic acid peptides here synthesized by incorporating BA with neutral amino acids using standard coupling protocols in the presence of HoBt, HBtu and DiPEA. In addition enantiopure betulinic-acid- cyclohexene silyl ether peptides was successly synthesized in a good yield. Futher olefinic...

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Main Author: Zahari, Habsah
Format: Thesis
Language:English
Published: 2017
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Online Access:https://ir.uitm.edu.my/id/eprint/37162/1/37162.pdf
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spelling my-uitm-ir.371622022-09-26T03:17:38Z Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari 2017 Zahari, Habsah Indexes (General) Biochemistry Peptides. Amino acid sequence Several Betulinic acid peptides here synthesized by incorporating BA with neutral amino acids using standard coupling protocols in the presence of HoBt, HBtu and DiPEA. In addition enantiopure betulinic-acid- cyclohexene silyl ether peptides was successly synthesized in a good yield. Futher olefinic cleavage reaction, afforded betulinic acid -y- butylrolactone peptides, which undergoes benzylation reaction to furnish desired end product benzylated BA-y-butylrolactone product. Five new synthesized betulinic acid derivatives were tested for their in vitro cytotoxicity against human corrected carainoma cell lines ( HT116). The result of preliminary biological activities showed that three compounds betulinic acid-cyclohexene silyl ether peptides, benzylated betulinic acid-alanine peptide, and benzylated betulinic acid-y-butylrolactone peptides with more hydrosolubility compare to betulinic acid, possessed impressive cytotoxicity with the IC50 values of 50.00, 36.67, 25.33 (ug/ml) respectively 2017 Thesis https://ir.uitm.edu.my/id/eprint/37162/ https://ir.uitm.edu.my/id/eprint/37162/1/37162.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Applied Sciences Mohd Ali, Mohd Tajudin
institution Universiti Teknologi MARA
collection UiTM Institutional Repository
language English
advisor Mohd Ali, Mohd Tajudin
topic Indexes (General)
Biochemistry
Indexes (General)
spellingShingle Indexes (General)
Biochemistry
Indexes (General)
Zahari, Habsah
Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari
description Several Betulinic acid peptides here synthesized by incorporating BA with neutral amino acids using standard coupling protocols in the presence of HoBt, HBtu and DiPEA. In addition enantiopure betulinic-acid- cyclohexene silyl ether peptides was successly synthesized in a good yield. Futher olefinic cleavage reaction, afforded betulinic acid -y- butylrolactone peptides, which undergoes benzylation reaction to furnish desired end product benzylated BA-y-butylrolactone product. Five new synthesized betulinic acid derivatives were tested for their in vitro cytotoxicity against human corrected carainoma cell lines ( HT116). The result of preliminary biological activities showed that three compounds betulinic acid-cyclohexene silyl ether peptides, benzylated betulinic acid-alanine peptide, and benzylated betulinic acid-y-butylrolactone peptides with more hydrosolubility compare to betulinic acid, possessed impressive cytotoxicity with the IC50 values of 50.00, 36.67, 25.33 (ug/ml) respectively
format Thesis
qualification_level Master's degree
author Zahari, Habsah
author_facet Zahari, Habsah
author_sort Zahari, Habsah
title Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari
title_short Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari
title_full Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari
title_fullStr Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari
title_full_unstemmed Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari
title_sort synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / habsah zahari
granting_institution Universiti Teknologi MARA (UiTM)
granting_department Faculty of Applied Sciences
publishDate 2017
url https://ir.uitm.edu.my/id/eprint/37162/1/37162.pdf
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