نتایج جستجو برای: 2 hydroxy 14 naphtoquinone
تعداد نتایج: 2745599 فیلتر نتایج به سال:
x-acetylaminofiuorene N-hydroxy-2-acetylamino fluorene x-hydroxy-2-acetylamino fluorene 2-hydroxylaminonaphthalene Recently it has become apparent that an increasing number of carcinogens are capable of interacting with nucleic acids (10, 14, 923). These observations may be causally related to the mech anism of carcinogenesis as being a special case of mutagenesis. The chemical reactions of som...
Recently, we identified 2-styrylchromones as a new class of antirhinovirus flavonoids with moderate activity against both rhinovirus groups A and B. In order to improve the antiviral effect of the first series of tested 2-styrylchromones, a hydroxy or methoxy group was introduced in position 3 of the chromone ring. Cytotoxicity and antiviral activity of the new synthesized compounds were evalua...
3'-Deamino-4'-epi-3'-hydroxy-daunorubicin (11) and -doxorubicin (14) have been synthesized. In the in vivo murine P-388 lymphocytic leukemia assay, these two compounds were more active than daunorubicin (1) and doxorubicin (2), respectively. Comparative studies in the P-388 assay indicated 3'-deamino-3'-hydroxydoxorubicin (3) to be more active than its 4'-epimer 14.
The reaction of 2-hydroxy-3-methoxybenzaldehyde with 4-nitrosulfonylhydrazide under refluxing led to co-crystalline compound contains N'-(2-hydroxy-3-methoxy benzylidene)-4-nitro benzenesulfonylhydrazide (a sulfonamide-Schiff base compound) and 1,2-bis (2-hydroxy-3-methoxy-benzylidenehydrazine) (I). A medium strong hydrogen bonds in 1 links the oxygen atoms of one molecule of 1,2-bis(2-hydroxy-...
The reaction of 2-hydroxy-3-methoxybenzaldehyde with 4-nitrosulfonylhydrazide under refluxing led to co-crystalline compound contains N'-(2-hydroxy-3-methoxy benzylidene)-4-nitro benzenesulfonylhydrazide (a sulfonamide-Schiff base compound) and 1,2-bis (2-hydroxy-3-methoxy-benzylidenehydrazine) (I). A medium strong hydrogen bonds in 1 links the oxygen atoms of one molecule of 1,2-bis(2-hydroxy-...
چکیده: در این پروژه از واکنش متیل آنترانیلات (1) با مواد مختلف محصولات گوناگونی به عنوان ضدآفتاب سنتز شده به طوری که: از واکنش متیل آنترانیلات (1) با اپی کلروهیدرین (2) و الاستین (5) محصول (methyl 2-(2-hydroxy-3-(elastin)propylamino)benzoate (7 با بازده خوب بدست آمد. از واکنش متیل آنترانیلات (1) با آلدهید (8) و الاستین (5) مشتقات (9) سنتز گردید. r` r 9 h h a oh-2-ph h b ome-2-ph h c ph...
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