摘要:
The present invention particularly relates to a chemoenzymatic process for the stereoselective preparation of both enantiomers of 3-hydroxy-4-trityloxy butanenitrile key intermediates for the preparation of (R)-GABOB by lipase mediated kinetic resolution of its racemates and their effective application in the enantioconvergent synthesis of (R)-GABOB.
摘要:
The present invention provides novel pyrrolo [2,1-c][1,4]benzodiazepine compounds. This invention also provides a process for the preparation of novel pyrrolo[2,1-c][1,4]benzodiazepine compounds. These novel pyrrolo [2,1-c][1,4]benzodiazepine compounds are useful as antitumor agents. It also provides a process for the preparation of 7-methoxy-8-{n-[4-(2-oxo-2H-4-chromenyl)piperazino]alkyl}-oxy-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one and 7-methoxy-8-{n-[4-(7-alkoxy-8-methyl-2-oxo-2H-4-chromenyl)piperazino]alkyl}-oxy-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]. benzodiazepine-5-one with aliphatic chain length variations for these compounds.
摘要:
Novel pyrrolo[2,1-c][1,4]benzodiazepine hybrids as well as processes for the preparation of novel pyrrolo[2,1-c][1,4]benzodiazepine hybrids are dislcosed. More particularly, present invention relates to a process for the preparation of novel pyrrolo[2,1-c][1,4]benzodiazepine hybrids as DNA sequence selective agents which are useful as potential antitumour agents. In particular, the present invention relates to a process for the preparation of new pyrrolo[2,1-c][1,4]benzodiazepine hybrids as potential antitumour agents. These compounds have the formula XIV shown below:
摘要:
The present invention provides a compound of general formula A, useful as potential anticancer agents against eleven human cancer cell lines. The present invention further provides a process for the preparation of diaryl ether linked pyrrolo[2,1-c][1,4]benzodi azepine conjugates attached through different alkane spacers of general formula A.
摘要:
The present invention provides a compound of general formula A, useful as potential antitumour agents against five human cancer cell lines. The present invention further provides a process for the preparation of pyrrolo[2,1-c][1,4]naphthodiazepine linked substituted piperazine conjugates attached through different alkane spacers of general formula A. (Formula I) General formula A. Where R=R′=(Formula II). n=1-9 and R″=methyl, ethyl, acetyl, benzyl, piperinoyl, 4-fluorophenyl, 4-chlorophenyl, 4-methoxyphenyl, pyridyl, pyrimidyl.
摘要翻译:本发明提供通式A的化合物,其可用作五种人癌细胞系的潜在抗肿瘤剂。 本发明还提供了制备通过不同的通式A的烷烃间隔物连接的吡咯并[2,1-c] [1,4]萘并氮杂的连接的取代的哌嗪共轭物的方法。(式I)通式A.其中R = R'=(式II)。 n = 1-9,R“=甲基,乙基,乙酰基,苄基,哌嗪基,4-氟苯基,4-氯苯基,4-甲氧基苯基,吡啶基,嘧啶基。
摘要:
The present invention provides a compounds of general formula IXa-d, useful as potential antitumour agents and pharmaceutical composition comprising these compounds exhibits binding affinity with calf thymus (CT) DNA at a molar ratio of 1:5 in aqueous sodium phosphate buffer at pH of 7.00. The present invention further provides a process for the preparation of C2-Fluoro substituted piperazine linked pyrrolo[2,1c][1-4], benzodiazepine of formula (IX).
摘要:
The present invention provides a compound of general formulae 3a-i to 6a-i, 7a-i to 10a-i, 12a-i to 15a-i, 16a-i to 19a-i, 21a-i to 24a-i, 25a-i to 28a-i, 30a-i to 33a-i, 34a-i to 37a-i and 39a-i to 42a-i, 43a-i to 46a-i useful as potential antitumour agents against human cancer cell lines and a process for the preparation thereof.
摘要:
The present invention relates to chalcone linked pyrrolo[2,1-c][1,4]benzodiazepine hybrids and a process for the preparation there of. More particularly it relates to 7-Methoxy-8-{n[4-1-(2 or 4-substituted phenyl)-3-(4-hydroxy-3-methoxyphenyl)-2-propen-1-one]alkyl}-oxy}-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one and 7-Methoxy-8-{n[-3-(4-hydroxy-3-methoxyphenyl)-1-(2,4-alkyl-3-quinolyl)-2-propen-1-one]alkyl}-oxy-(11aS)-1,2,3,11a-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one with aliphatic chain length variations useful as anticancer (antitumour) agent. The general structural formula of these chalcone linked pyrrolo[2,1-c][1,4]benzodiazepines hybrids is given below. wherein R1═OH, methyl, ethyl or phenyl; R2═H, OH or F; R═H or methyl; x=c or N; n=1-4
摘要:
The present invention provides a chemoenzymatic process for the preparation of (R)-GABOB and (R)-carnitine employing lipase-mediated resolution of 3-hydroxy-4-tosyloxybutanenitrile as the key step. The drawing accompanying this specification represents the preparation of racemic 3-hydroxy-4-tosyloxybutanenitrile, its lipase-mediated kinetic resolution and its successful application in the preparation of (R)-GABOB and (R)-carnitine.
摘要:
The present invention provides novel bis-pyrrolo[2,1-c][1,4]benzodiazepine-anthraquinone conjugates of general formula V, useful as potential antitumour agents against human cancer cell lines. The present invention further provides a process for the preparation of novel bis-pyrrolo[2,1 -c][1,4]benzodiazepine-anthraquinone conjugates of general formula V. wherein n=3, 4, or 5.