Chemical constituents from the leaves of stelechocarpus cauliflorus and their biological activities

Name: Hasan Useng

Organization : Phuket Rajabhat University. Graduate school

keyword: telechocarpus cauliflorus

ThaSH: telechocarpus cauliflorus -- research

Abstract: Investigation of chemical constituents of the EtOAc extract from the leaves of Stelechocarpus cauliflorus (Annonaceae) led to the isolated of the four new neolignans: (+)-machilusol C (SL3), (+)-machilusol D (SL4), (+)-curcasinlignan C (SL8) and (-)-(7S,8S)-4-hydroxy-3-methoxy-8',9'-dinor-4',7-epoxy-8,3'-neolignan-7'-al (SL9) together with eleven known compounds: (+)-licarin A (SL1), (+)-acuminatin (SL2), (-)-(7S,8S,7'E)-3,4-dimethoxy-4',7-epoxy-8,3'-neolignan-7'-ene (SL5), (-)-parakmerin A (SL6), (+)-kadsurenin M (SL7), spathulenol (SL10), phytol (SL11), β-sitosterol (SL12), stigmasterol (SL13), stigmast-4-en-3-one (SL14), and stigmasta-4,22-dien-3-one (SL15). The structure of the compounds were determined by spectroscopic analysis, 1D and 2D NMR techniques (1H, 13C, COSY, HMQC and HMBC) and comparison with those reported in the literature. The DPPH free radical scavenging properties of the some isolated compounds and crude extract were evaluated. The crude EtOAc extracts and compounds SL6-SL9 showed weak to moderate DPPH free radical scavenging activities, compared to the reference standard, Trolox.

มหาวิทยาลัยราชภัฏภูเก็ต. สำนักวิทยบริการและเทคโนโลยีสารสนเทศ

Address: ภูเก็ต

Email: library@pkru.ac.th

Name: Sompong Boonri

Role: ประธานกรรมการที่ปรึกษา

Created: 2018

Modified: 2562-10-11

Issued: 2562

Issued: 2562-10-11

วิทยานิพนธ์/Thesis

application/pdf

CallNumber: TH 583 H344C

tha

DegreeName: The Degree of master of science

Level: Degree of master

Descipline: Natural Products Chemistry

Grantor: Phuket Ratjabhat University

©copyrights มหาวิทยาลัยราชภัฏภูเก็ต

ลำดับที่.	ชื่อแฟ้มข้อมูล	ขนาดแฟ้มข้อมูล	จำนวนเข้าถึง	วัน-เวลาเข้าถึงล่าสุด
1	Cover.pdf	142.27 KB
2	Appro.pdf	151.27 KB	1	2021-09-28 09:42:23
3	Acknow.pdf	111.95 KB	1	2021-09-28 09:42:37
4	Contents.pdf	231.25 KB
5	Figures.pdf	217.83 KB
6	Tables.pdf	575.82 KB
7	Chapter 1.pdf	475.2 KB
8	Chapter 2.pdf	2.51 MB	1	2020-12-24 16:37:08
9	Chapter 3.pdf	420.19 KB
10	Chapter 4.pdf	1.64 MB
11	Chapter 5.pdf	518.61 KB
12	Bib.pdf	289.41 KB
13	Append.pdf	2.38 MB
14	Abst.pdf	851.59 KB
15	Biog.pdf	74.73 KB

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