M. Uvais S. Sultanbawa: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

Don't use scam websites

1

The structure of zeylasterone - the first of a new series of phenolic 24-nor-D:A-friedo-oleanan triterpenes

G.M. Kamal, B. Gunaherath, A.A. Leslie Gunatilaka, M. Uvais, S. Sultanbawa, Mohamed I.M. Wazeer

Journal:

Tetrahedron Letters

Year:

1980

Language:

english

File:

PDF, 229 KB

english, 1980

2

Chemical investigation of ceylonese plants. Part VII. Extractives of Calophyllum thwaitesii Planch and Triana and Calophyllum walkeri Wight (Guttiferae)

Dahanayake, Mahilal, Kitagawa, Isao, Somanathan, Ratnaswamy, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1974

Language:

english

File:

PDF, 675 KB

english, 1974

3

Chemical investigation of ceylonese plants. Part XII. (+)-3,4?,5,7-Tetrahydroxy-3?-methoxyflavanone [(+)-dihydroisorhamnetin] and 3,5,7-trihydroxy-3?,4?-dimethoxyflavone (dillenetin): two new natural products from Dillenia indica L.

Pavanasasivam, Gowsala, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1975

Language:

english

File:

PDF, 249 KB

english, 1975

4

Chemical investigation of ceylonese plants. Part 22. Extractives of Trichadenia zeylanica Thw. (Flacourtiaceae); isolation and structures of six new triterpenoids containing the friedelane skeleton

Gunasekera, Sarath P., Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1977

Language:

english

File:

PDF, 985 KB

english, 1977

5

28,29-Dihydroxyfriedelan-3-one, a friedelane with two oxygenated methyl groups, from Elaeodendron balae(Celastraceae)

Weeratunga, Gamini, Kumar, Vijaya, Sultanbawa, M. Uvais S., Balasubramaniam, Sinnathamby

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1982

Language:

english

File:

PDF, 368 KB

english, 1982

6

Carbon-13 n.m.r. study of naturally occurring xanthones

Philip W. Westerman, Sarath P. Gunasekera, M. Uvais, S. Sultanbawa, Rymantas Kazlauskas

Journal:

Magnetic Resonance in Chemistry

Year:

1977

Language:

english

File:

PDF, 487 KB

english, 1977

7

Assignment of the 13C nuclear magnetic resonance spectra of three 27-hydroxyfriedelanes

A. A. Leslie Gunatilaka, N. P. Dhammika Nanayakkara, M. Uvais S. Sultanbawa, Mohamed I. M. Wazeer

Journal:

Magnetic Resonance in Chemistry

Year:

1982

Language:

english

File:

PDF, 132 KB

english, 1982

8

Triterpenes of five euphorbiaceae species of Sri Lanka

Roshan C. Carpenter, Subramaniam Sotheeswaran, M. Uvais, S. Sultanbawa, Sinnathamby Balasubramaniam

Journal:

Year:

1980

Language:

english

File:

PDF, 410 KB

english, 1980

9

Structures of kokzeylanol and kokzeylanonol two new natural tri- and tetra- oxygenated D:A-friedo-oleananes

A.A.Leslie Gunatilaka, N.P.Dhammika Nanayakkara, M. Uvais, S. Sultanbawa

Journal:

Tetrahedron Letters

Year:

1981

Language:

english

File:

PDF, 200 KB

english, 1981

10

Chemical investigation of Ceylonese plants. Part XV. Extractives of Kayea stylosa Thw. (Guttiferae)

Gunasekera, Sarath P., Selliah, Sathiadevan, Sultanbawa, M.Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1975

Language:

english

File:

PDF, 834 KB

english, 1975

11

ChemInform Abstract: A STEREOSPECIFIC ROUTE TO TRISUBSTITUTED OLEFINS VIA β-LACTONES

MEGESWARAN, SIVAPATHASUNTHARAM, SULTANBAWA, M. UVAIS S.

Journal:

Chemischer Informationsdienst

Year:

1976

File:

PDF, 126 KB

1976

12

ChemInform Abstract: CHEMICAL INVESTIGATION OF CEYLONESE PLANTS PART 8, TRAPEZIFOLIXANTHONE, A NEW DI-ISOPRENYLATED XANTHONE FROM THE BARK OF CALOPHYLLUM TRAPEZIFOLIUM THW. (GUTTIFERAE)

SOMANATHAN, RATNASWAMY, SULTANBAWA, M. UVAIS S.

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 96 KB

1975

13

Dulcitol and (-)4'-O-Methylepigallocateehin From Kokoona zeylanica

Kamal, G. M., Gunaherath, B., Gunatilaka, A. A. Leslie, Sultanbawa, M. Uvais S., Balasubramaniam, Sinnathamby

Journal:

Journal of Natural Products

Year:

1982

Language:

english

File:

PDF, 228 KB

english, 1982

14

Chemical investigation of ceylonese plants. Part 27. Extractives of Calophyllum cuneifolium Thw. and Calophyllum soulattri Burm. f. (Guttiferae)

Gunasekera, Sarath P., Jayatilake, Gamini S., Selliah, Sathiadevan S., Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1977

Language:

english

File:

PDF, 946 KB

english, 1977

15

Chemical investigation of ceylonese plants. Part XVII. Isolation and structures of the xanthones in the extractives of Mesua ferrea L. (form M. salicina Pl. and Tr.)(Guttiferae)

Gunasekera, Sarath P., Ramachandran, Samyiyah, Selliah, Sathiadevan, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1975

Language:

english

File:

PDF, 608 KB

english, 1975

16

ChemInform Abstract: CHEMICAL INVESTIGATION OF CEYLONESE PLANTS PART 3, EXTRACTIVES OF THE FRUITS OF ARGYREIA POPULIFOLIA CHOISY (CONVOLVULACEAE)

GUNATILAKE, A. A. LESLIE, SULTANBAWA, M. UVAIS S.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 93 KB

1973

17

Friedelin, D:A-friedo-olean-3,21-dione and 21α-hydroxy-D:A-friedo-olean-3-one from Kokoona zeylanica

A.A. Leslie Gunatilaka, N.P. Dhammika Nanayakkara, M. Uvais, S. Sultanbawa, Sinnathamby Balasubramaniam

Journal:

Year:

1982

Language:

english

File:

PDF, 291 KB

english, 1982

18

Distichol an antibacterial polyphenol from Shorea disticha

M.Uvais S. Sultanbawa, Sivagnanasundram Surendrakumar, Peter Bladon

Journal:

Year:

1987

Language:

english

File:

PDF, 275 KB

english, 1987

19

Another antibacterial polyphenol, copalliferol B, from Vateria copallifera (dipterocarpaceae)

Y.A.Geewananda P. Gunawardena, Subramaniam Sotheeswaran, M.Uvais S. Sultanbawa, Sivagnanasunderam Surendrakumar, Peter Bladon

Journal:

Year:

1986

Language:

english

File:

PDF, 217 KB

english, 1986

20

Triterpenoid taxonomic markers for Stemonoporus and other genera of the dipterocarpaceae

Wickramasinghe M. Bandaranayake, Subadra Karunanayake, Subramaniam Sotheeswaran, M.Uvais S. Sultanbawa, Sinnathamby Balasubramaniam

Journal:

Year:

1977

Language:

english

File:

PDF, 371 KB

english, 1977

21

Bark acids of seven Calophyllum species (Guttiferae)

Samaraweera, Upasiri, Sotheeswaran, Subramaniam, Sultanbawa, M. Uvais S., Balasubramaniam, Sinnathamby

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1983

Language:

english

File:

PDF, 438 KB

english, 1983

22

Triterpenoids and steroids of some Sapotaceae and their chemotaxonomic significance

Sarath P. Gunasekera, Vijaya Kumar, M.Uvais S. Sultanbawa, Sinnathamby Balasubramaniam

Journal:

Year:

1977

Language:

english

File:

PDF, 548 KB

english, 1977

23

Three hydroxy ellagic acid methyl ethers, chrysophanol and scopoletin from Shorea worthingtonii and Vatica obscura

Y.A. Geevananda, P. Gunawardana, N.Savitri Kumar, M.Uvais S. Sultanbawa

Journal:

Year:

1979

Language:

english

File:

PDF, 400 KB

english, 1979

24

Irradiation of friedelan-21-ones: structure determination of novel friedelane triterpenes from kokoona zeylanica

Gunatilaka, A. A. Leslie, Nanayakkara, N. P. Dhammika, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1979

Language:

english

File:

PDF, 226 KB

english, 1979

25

Triterpenoid, coumarin and quinone constituents of eleven Diospyros species (Ebenaceae)

W.H.M.Wimalaseela Herath, Nimal D.S. Rajasekera, M.Uvais S. Sultanbawa, G.Percy Wannigama, Sinnathamby Balasubramaniam

Journal:

Year:

1978

Language:

english

File:

PDF, 254 KB

english, 1978

26

Flavonoids of some dilleniaceae species

Gowsala Pavanasasivam, M.Uvais S. Sultanbawa

Journal:

Year:

1975

Language:

english

File:

PDF, 162 KB

english, 1975

27

Chemical investigation of Ceylonese plants. Part 20. Extractives of Mesua myrtifolia. Isolation and structure of a new triterpene hydroxy-acid, myrtifolic acid

Gunasekera, Sarath P., Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1977

Language:

english

File:

PDF, 659 KB

english, 1977

28

3,5,7,3′,5′-Pentahydroxyflavan and 3α-methoxyfriedelan from Humboldtia laurifolia

Upasiri Samaraweera, Subramaniam Sotheeswaran, M. Uvais, S. Sultanbawa

Journal:

Year:

1983

Language:

english

File:

PDF, 263 KB

english, 1983

29

ChemInform Abstract: CHEMICAL INVESTIGATION OF CEYLONESE PLANTS PART 15, EXTRACTIVES OF KAYEA STYLOSA THW. (GUTTIFERAE)

GUNASEKERA, SARATH P., SELLIAH, SATHIADEVAN, SULTANBAWA, M. UVAIS S.

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 87 KB

1975

30

Polyphenols from dipterocarp species. Vaticaffinol and ?-viniferin

Sotheeswaran, Subramaniam, Sultanbawa, M. Uvais S., Surendrakumar, Sivagnanasundram, Balasubramaniam, Sinnathamby, Bladon, Peter

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1985

Language:

english

File:

PDF, 505 KB

english, 1985

31

A stereospecific route to trisubstituted olefins via?-lactones

Mageswaran, Sivapathasuntharam, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1976

Language:

english

File:

PDF, 1.03 MB

english, 1976

32

13C nuclear magnetic resonance spectra of some naturally occurring friedelanones

A. A. Leslie Gunatilaka, N. P. Dhammika Nanayakkara, M. Uvais S. Sultanbawa, Mohammed I. M. Wazeer

Journal:

Magnetic Resonance in Chemistry

Year:

1980

Language:

english

File:

PDF, 288 KB

english, 1980

33

Studies on terpenoids and steroids. Part 1. Structures of six novel 27-hydroxy and 6?-hydroxy di- and tri-oxygenated D : A-friedo-oleanane triterpenes from Kokoona zeylanica

Gunatilaka, A. A. Leslie, Nanayakkara, N. P. Dhammika, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1983

Language:

english

File:

PDF, 1.47 MB

english, 1983

34

Two new xanthones, calozeyloxanthone and zeyloxanthonone, from Calophyllum zeylanicum(Guttiferae)

Gunasekera, Sarath P., Sotheeswaran, Subramaniam, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1981

Language:

english

File:

PDF, 676 KB

english, 1981

35

3-Oxolup-20(29)-en-30-al, a new lupane from Gymnosporia emarginata(Celastraceae)

Wijeratne, Dharmassree B. T., Kumar, Vijaya, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1981

Language:

english

File:

PDF, 397 KB

english, 1981

36

Calozeylanic acid, a new bark acid from three calophyllum species (guttiferae)

Upasiri Samaraweera, Subramaniam Sotheeswaran, M. Uvais, S. Sultanbawa

Journal:

Tetrahedron Letters

Year:

1981

Language:

english

File:

PDF, 204 KB

english, 1981

37

Two pyranodihydrobenzoxanthones from Artocarpus nobilis

M. Uvais, S. Sultanbawa, Sivagnanasundram Surendrakumar

Journal:

Year:

1989

Language:

english

File:

PDF, 548 KB

english, 1989

38

Xanthones and 4-phenylcoumarins of Mesua thwaitesii

Wickramasinghe M. Bandaranayake, Sathiaderan S. Selliah, M.Uvais S. Sultanbawa, D.E. Games

Journal:

Year:

1975

Language:

english

File:

PDF, 513 KB

english, 1975

39

Chemical investigation of ceylonese plants. Part III. Extractives of the fruits of Argyreia populifolia choisy (convolvulaceae)

Gunatilake, A. A. Leslie, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1973

Language:

english

File:

PDF, 401 KB

english, 1973

40

Two new angular methyl dioxygenated D:A-fried-oleananes

Gamini Weeratunga, Vijaya Kumar, M. Uvais S. Sultanbawa

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 132 KB

english, 1982

41

Structures of four new oxygenated lupanes from Pleurostylia opposita(Celastraceae)

Dantanarayana, Anura P., Kumar, N. Savitri, Sultanbawa, M. Uvais S., Balasubramaniam, Sinnathamby

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1981

Language:

english

File:

PDF, 933 KB

english, 1981

42

New antibacterial polyphenol, copalliferol A, from Vateria copallifera(retz.) alston (dipterocarpaceae)

Sultanbawa, M. Uvais S., Surendrakumar, Sivagnanasundram, Bladon, Peter

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1980

Language:

english

File:

PDF, 173 KB

english, 1980

43

Xanthones and triterpenes of Calophyllum tomentosum

Subadra Karunanayake, Subramanian Sotheeswaran, M. Uvais, S. Sultanbawa, Sinnathamby Balasubramaniam

Journal:

Year:

1981

Language:

english

File:

PDF, 214 KB

english, 1981

44

Pachyovatamine, a bisbenzylisoquinoline alkaloid, and other alkaloids from Pachygone ovata

M. Uvais, S. Sultanbawa, Subramaniam Sotheeswaran, Sinnathamby Balasubramaniam, Moustafa Abd El-kawi, David J. Slatkin, Paul L. Schiff Jr.

Journal:

Year:

1985

Language:

english

File:

PDF, 544 KB

english, 1985

45

1,2(3)-Tetrahydro-3,3′-biplumbagin: A naphthalenone and other constituents from Plumbago zeylanica

G.M.Kamal B. Gunaherath, A.A.Leslie Gunatilaka, M.Uvais S. Sultanbawa, S. Balasubramaniam

Journal:

Year:

1983

Language:

english

File:

PDF, 320 KB

english, 1983

46

ChemInform Abstract: CHEMICAL INVESTIGATION OF CEYLONESE PLANTS PART 7, EXTRACTIVES OF CALOPHYLLUM THWAITESII PLANCH AND TRIANA AND CALOPHYLLUM WALKERI WIGHT (GUTTIFERAE)

DAHANAYAKE, MAHILAL, KITAGAWA, ISAO, SOMANATHAN, RATNASWAMY, SULTANBAWA, M. UVAIS S.

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 96 KB

1975

47

ChemInform Abstract: CHEMICAL INVESTIGATIONS OF CEYLONESE PLANTS PART 12, (+)-3,4′,5,7-TETRAHYDROXY-3′-METHOXYFLAVANONE ((+)-DIHYDROISORHAMNETIN) AND 3,5,7-TRIHYDROXY-3′,4′-DIMETHOXYFLAVONE (DILLENETIN), TWO NEW NATURAL PRODUCTS FROM DILLENIA INDICA L.

PAVANASASIVAM, GOWSALA, SULTANBAWA, M. UVAIS S.

Journal:

Chemischer Informationsdienst

Year:

1975

File:

PDF, 164 KB

1975

48

ChemInform Abstract: A STEREOSPECIFIC ROUTE TO TRISUBSTITUTED OLEFINS VIA β-LACTONES

MEGESWARAN, SIVAPATHASUNTHARAM, SULTANBAWA, M. UVAIS S.

Journal:

Chemischer Informationsdienst

Year:

1976

File:

PDF, 126 KB

1976

49

Biflavonoids and xanthones of Garcinia terpnophylla and G. Echinocarpa

Wickramasinghe M. Bandaranayake, Sathiadevan S. Selliah, M.Uvais S. Sultanbawa, W. Davii Ollis

Journal:

Year:

1975

Language:

english

File:

PDF, 317 KB

english, 1975

50

Chemical investigation of ceylonese plants. Part VIII. Trapezifolixanthone, a new di-isoprenylated xanthone from the bark of Calophyllum trapezifolium Thw. (Guttiferae)

Somanathan, Ratnaswamy, Sultanbawa, M. Uvais S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1974

Language:

english

File:

PDF, 373 KB

english, 1974

To build up a library is to create a life. It’s never just a random collection of books.

— Carlos María Domínguez

Official channel

Z-Library Desktop Launcher

Z-Library Since 2009 support@1delivery.pm

EnglishРусскийEspañolItalianoελληνικάاللغة العربيةBahasa IndonesiaBahasa Malaysiaहिन्दीDeutschFrançaisPortuguêsУкраїнськаPolski中文繁體中文日本語Tiếng ViệtAzərbaycan DiliՀայոց լեզուภาษาไทยTürk Diliქართველიবাংলাپښتوతెలుగుاردو한국어SrpskiБългарски