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A New Route to Substituted N-hydroxyurea Derivatives (CROSBI ID 618103)

Prilog sa skupa u časopisu | sažetak izlaganja sa skupa | međunarodna recenzija

Jadrijević-Mladar Takač, Milena ; Butula, Ivan A New Route to Substituted N-hydroxyurea Derivatives // European journal of pharmaceutical sciences / Linden, H. Hans (ur.). 2000. str. S111-S112

Podaci o odgovornosti

Jadrijević-Mladar Takač, Milena ; Butula, Ivan

engleski

A New Route to Substituted N-hydroxyurea Derivatives

The reaction of (1, Bz = benzyl) with fosgene (i) gave 1, 3, 5-(tribenzyloxy)biuret (2), whereas with BtCOCl (Bt = benzotriazolyl) (ii) gave 1-(N-benzyloxy)carbamoylbenzotriazole (5). Compounds 2 and 5 were reduced to their corresponding hydroxyl derivatives 3 and 6 (iii). The 5 and 6 were melted in presence of imidazole to afford 1, 3, 5-triazine-2, 4, 6(1H, 3H, 5H)-triones 7, X = -CON(OBz)CO-, and 8, Y = -CON(OH)CO- (iv). Scheme. Compounds 5, 6 or 7 in the reaction with ChNH2 (Ch = cyclohexyl) gave O- and/or N-substituted N-hydroxyureas 9 and 10 (v), whereas 8, due to its acidic properties, rather form cyclohexylamine salt.

N-Hydroxyura; Synthesis; Benzotriazole; 1; 3-5-Tribenzyloxy-biuret; 1-(N-benzyloxycarbamoylbenzotriazole; 1; 3; 5-Triazine-2; 4; 5(1H; 3H; 5H)-triones

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Podaci o prilogu

S111-S112.

2000.

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objavljeno

Podaci o matičnoj publikaciji

European journal of pharmaceutical sciences

Linden, H. Hans

Oxford: Elsevier

0928-0987

Podaci o skupu

6th European Congress on Pharmaceutical Sciences, EUFEPS 2000

poster

16.09.2000-19.09.2000

Budimpešta, Mađarska

Povezanost rada

Kemija, Farmacija

Indeksiranost