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1987-11-25
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1991-11-12
Method of 1,1,1-trifluorochlorethane and 1,1,1,2-tetrafluorethane preparation
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1988-09-15
Method of obtaining derivatives of 2,3-dihydrofurene
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1991-09-15
Derivatives of 3-aryltriazolo (4,5-f) quinoline-8-carboxylic acid and method of their preparation
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1996-09-16
Derivatives of 2,3,5,6-terafluorobenzoic acid and method of obtaining them
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1993-09-30
Method for the preparation of anilinofumarate and quinoline-2,3- dicarboxylic acid
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1990-05-09
Aromatic derivative and preparation method thereof
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1999-07-15
2-amino-4-methylphosphinobutyric acid derivatives and preparing method thereof
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1988-04-15
Derivatives of 1, 3- dihydro- 2h- imidazol- 2- ons and method for their preparation
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1988-04-15
Derivatives of 1, 3- dihydro- 2h- imidazol- 2- ons and method for their preparation
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1989-11-14
Method of 2,6-dialkyl-n-/1 -methoxy-2-propylidene/aniline preparation
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1991-08-13
8-substituted derivatives of 1h-1-methyl-9-oxo-6,9-dihydrotriazolo/5,4-f/quinoline and method of their preparation
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1989-04-14
3-substituted 4-imino-1,2,3,4-tetrahydroquinazoline-2-thiones and method of their preparation
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1987-12-15
Derivatives of diimides of perilene- 3, 4, 9, 10- tetracarbonic acid and method for their manufacture
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1991-07-16
Substituted 1,1,1,3-tetrachloro-3-fenylpropanes and method of their preparation
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1987-03-09
Method of obtaining novel derivatives of 1,4-dihydropyridine
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1989-08-15
Derivatives of 1, 4- phenyldiamine- 2- sulphone acid and method for its preparing
RO103936B1
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1992-05-08
Aminoacetyl-oxohexyl derivative of 1,3-dimethyl-xanthin and preparation method
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1990-09-12
Substituted 1,1,3-trichloro-3-phenylpropanes and method of their preparation
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1990-02-19
Method of obtaining novel derivatives of 4-oxo-1,2,3,4-tetrahydrocinnoline
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1989-05-12
Method of 2,6-dialkyl-n-(-methoxy-2-propyl)aniline preparation
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1990-09-12
2-amino-2-hydroxymethyl-3,4-trans-epoxy-14-oxo-6-trans-eikosenic acid and method of its preparation
PL274916A1
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1990-04-02
Method of obtaining 2,2'-dithiodibenzoic acid
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1989-09-12
New pharmacollogically active derivatives of 1,4-dihydropyridines and method of their preparation
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Novel pyridoindol derivatives method for their preparation and their application