- Montmorillonite clay-catalysed synthesis of cyclic allylamines
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A mild and efficient catalytic method for the synthesis of cyclic N-allylamines using an acid-exchanged montmorillonite as a catalyst is described.
- Hachemaoui, A?cha,Belbachir, Mohammed
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- CARBODITHIOATES WITH SPERMICIDAL ACTIVITY AND PROCESS FOR PREPARATION THEREOF
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The present invention relates to the synthesis and biological evaluation of compound of formula I as spermicidal agents, and its pharmaceutically acceptable acid salt thereof. The invention provides bis(4- substituted-1-piperazinylthiocarbonyl) disulfide (when n = 0) and alkane-1,n-diylbis(4-substituted piperazine-1-carbodithioate) (when n = 0, 1, 2 or 3) as shown in figure 1 of the accompanying drawing. These compounds are found to be useful for spermicidal activity.
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Page/Page column 38; 39; 53; 54; 55; 56
(2014/08/20)
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- Unique spirocyclopiperazinium salt I: Synthesis and structure-activity relationship of spirocyclopiperazinium salts as analgesics
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Based on the structure of compound 3, two series of spirocyclopiperazinium derivatives 7a-n and 10a-h were synthesized and evaluated for their in vivo analgesic and sedative activities. Compounds 7f and 10c were discovered to exhibit excellent analgesic activity. Structure-activity relationships revealed that anion of the quaternary salt affected the analgesic and sedative activity significantly; the allyl group is a most effective group among the compounds 7a-n; the electron-released substitute on the aromatic ring is favorable to increase the analgesic activity.
- Gao, Feng-Li,Wang, Xin,Zhang, Hong-Mei,Cheng, Tie-Ming,Li, Run-Tao
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p. 1535 - 1537
(2007/10/03)
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- SUBSTITUTED QUINAZOLINE DERIVATIVES AND THEIR USE AS INHIBITORS
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The use of a compound of formula (I) 1 or a salt, ester or amide thereof; where X is O, or S, S(O) or S(O)2, or NR6 where R6 is hydrogen or C1-6 alkyl,; R5 is an optionally substituted 5-membered heteroaromatic ring, R1, R2 ,R3, R4 are independently selected from various specified moieties, in the preparation of a medicament for use in the inhibition of aurora 2 kinase. Certain compounds are novel and these, together with pharmaceutical compositions containing them are also described and claimed
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- 3-(4-Substituted piperazino)-1-xanthene-9-carbonyloxy-propanes
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The invention relates to novel piperazine derivatives having the formula (I), STR1 wherein R1 represents a C1-5 alkyl group having optionally a phenyl, trimethoxyphenyl, phenoxy, methoxy-cyclohexyl or heptamethyleneimino substituent
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- Antibiotically active compounds
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Antibiotically active compounds derived from rifamycin S or from the corresponding hydroquinone, rifamycin SV, or from derivatives at least partially hydrogenated in positions 16, 17; 18, 19; 28, 29, such as the 16, 17; 18, 19 - tetrahydro- or the 16, 17; 18, 19; 28, 29 - hexahydro derivatives, which contain in position 3 a free or an aliphatically substituted amino group. The hydrocarbon radicals of the aliphatically substituted amino group can also be interrupted in their carbon chain by heteroatoms and/or be substituted by functional groups. A special group of these new compounds is represented by 3-amino derivatives as defined above, in which the amino group is a particular type of N- aza - cyclo - aliphatic radical unsubstituted by functional groups, and which has, in addition to the antibiotic action against sensitive microorganisms also an antibacterial activity against certain types of resistant microorganisms. Another special group is represented by 3- amino derivatives as defined above, in which the amino group is a particular type of a 4R - 1 - piperazinyl radical, in which R is a hydrocarbon radical ; they have a special high antituberculosis action, while having very low toxicity.
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