Search Results - "Yosief, Tesfamariam"

Clathsterol, a Novel Anti-HIV-1 RT Sulfated Sterol from the Sponge Clathria Species by Rudi, Amira, Yosief, Tesfamariam, Loya, Shoshana, Hizi, Amnon, Schleyer, Michael, Kashman, Yoel

“…As part of a search for novel inhibitors of humandeficiency virus type 1 (HIV-1) reverse transcriptase (RT), the MeOH−EtOAc extract of a Red Sea sponge,…”
Get full text

Halichondramine, a New Tetracyclic Bipiperidine Alkaloid from the Marine Sponge Halichondria sp by Chill, Liat, Yosief, Tesfamariam, Kashman, Yoel

“…Halichondramine (1), a new tetracyclic alkylbipiperidine alkaloid, has been isolated from the marine sponge Halichondria sp., collected in the Dahlak…”
Get full text

New Triterpenoids from the Red Sea Sponge Siphonochalina siphonella by KASHMAN, Yoel, YOSIEF, Tesfamariam, CARMELI, Shmuel

“…Clear differences were found when comparing the chemical content of the northern, Gulf of Eilat, to the southern-central, Dahlak archipelago, Red Sea sponge…”
Get full text

Asmarines A−F, Novel Cytotoxic Compounds from the Marine Sponge Raspailia Species by Yosief, Tesfamariam, Rudi, Amira, Kashman, Yoel

“…Three pairs of nitrogen-containing metabolites, asmarines A−F (1−6), were isolated from the Red Sea sponge Raspailia sp., collected in the Dahlak Archipelago,…”
Get full text

Several new isoprenoids from two marine sponges of the family Axinellidae by Rudi, Amira, Yosief, Tesfamariam, Schleyer, Michael, Kashman, Yoel

“…Ten new isoprenoids have been isolated from two marine sponges Ptilocaulis spiculifer and Axinella weltneri. P. spiculifer afforded three triterpenes,…”
Get full text

New Triterpenoids from the Red Sea Sponge Siphonochalina s iphonella by Kashman, Yoel, Yosief, Tesfamariam, Carmeli, Shmuel

“…Clear differences were found when comparing the chemical content of the northern, Gulf of Eilat, to the southern-central, Dahlak archipelago, Red Sea sponge…”
Get full text

Bilosespens A and B: two novel cytotoxic sesterpenes from the marine sponge Dysidea cinerea by Rudi, A, Yosief, T, Schleyer, M, Kashman, Y

“…[formula: see text] Two novel sesterpenes, bilosespens A and B (1 and 2) were isolated from the Red Sea sponge Dysidea cinerea collected in the Dahlak…”
Get full text

Asmarines A-C; Three novel cytotoxic metabolites from the marine sponge Raspailia sp by Yosief, Tesfamariam, Rudi, Amira, Stein, Zafra, Goldberg, Israel, Gravalos, Garcia M.D., Schleyer, Michael, Kashman, Yoel

“…Three novel nitrogen-containing metabolites, asmarines A-C ( 1 – 3) together with two known diterpenes, zaatirin and chelodane were isolated from the Red Sea…”
Get full text

Bilosespens A and B:  Two Novel Cytotoxic Sesterpenes from the Marine Sponge Dysidea c inerea by Rudi, Amira, Yosief, Tesfamariam, Schleyer, Michael, Kashman, Yoel

“…Two novel sesterpenes, bilosespens A and B (1 and 2) were isolated from the Red Sea sponge Dysidea cinerea collected in the Dahlak archipelago, Eritrea. The…”
Get full text

Bacteriohopanehexol, a New Triterpene from the Marine Sponge Petrosia Species by Shatz, Maria, Yosief, Tesfamariam, Kashman, Yoel

“…A new bacteriohopanoid, bacteriohopanehexol was isolated from the marine sponge Petrosia sp., and its structure 1a was established on the basis of the NMR and…”
Get full text

Two New C 22 1,2-Dioxane Polyketides from the Marine Sponge Acarnus cf. b ergquistae by Yosief, Tesfamariam, Rudi, Amira, Wolde-ab, Yisak, Kashman, Yoel

Get full text

Two new C22 1,2-dioxane polyketides from the marine sponge Acarnus cf. bergquistae by Yosief, T, Rudi, A, Wolde-ab, Y, Kashman, Y

“…Two new cyclic peroxide-containing polyketide C22 methyl esters, peroxyacarnoic acid methyl esters A and B, 1 and 2, have been isolated from the Red Sea marine…”
Get full text

Two New C22 1,2-Dioxane Polyketides from the Marine Sponge Acarnus cf. b ergquistae by Yosief, Tesfamariam, Rudi, Amira, Wolde-ab, Yisak, Kashman, Yoel

“…Two new cyclic peroxide-containing polyketide C22 methyl esters, peroxyacarnoic acid methyl esters A and B, 1 and 2, have been isolated from the Red Sea marine…”
Get full text

SOFT CORALS (OCTOCORALLIA, ALCYONACEA) OF THE SOUTHERN RED SEA by BENAYAHU, YEHUDA, YOSIEF, TESFAMARIAM, SCHLEYER, MICHAEL H., SCHLEYERc, MICHAEL H.

“…The species composition of soft corals of the families Tubiporidae, Alcyoniidae, Nephtheidae, and Xeniidae is presented for the Dahlak Archipelago (15-16…”
Get full text