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1993-05-04
Method of obtaining 1,2-dihydro-2-ketopyridines
CS20091A2
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1991-09-15
Basic calciumaluminiumhydroxidedicarboxylate, method of its preparation and its application
CS9100656A2
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1991-11-12
Method of 1,1,1-trifluorochlorethane and 1,1,1,2-tetrafluorethane preparation
ZA919642B
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1992-08-26
N-aryl-3-aryl-4-substituted-2,3,4,5-tetrahydro-1h-pyraxole-1-carboxamides and methods of their production
HU9802965D0
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1999-02-01
Iminothiazolidine intermediers and process for their preparation
ZA911927B
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1991-12-24
Labdanes and process for their preparation
PL289403A1
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1991-12-02
Method of obtaining 1,1,1-trifluorochloroethane and 1,1,1,2-tetrafluoroethane
PL292813A1
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1992-12-14
Method of obtaining novel derivatives of 15-nitro-2, 3, 6,7-tetrahydrotabersonine
EP0474016A3
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1992-05-27
Method for the preparation of 2,3-dihydro-benzofuranes
PL297518A1
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1993-08-23
Method of obtaining 4,6-dialkoxypyrimidines
CS275585B2
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1992-02-19
Substituted 1,1,1,3-tetrachloro-3-fenylpropanes and method of their preparation
EP0486452A3
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1992-10-28
Preparation of 2,2'-oxydisuccinate
PL276098A1
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1990-06-11
Method of obtaining 2,3-dibromide-2-butene-1,4-diole
CS415188A1
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1989-04-14
3-substituted 4-imino-1,2,3,4-tetrahydroquinazoline-2-thiones and method of their preparation
PL286447A1
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1992-02-24
Method of obtaining 1,3-dimethyl-4-/-hydroxyaminopropane/-uracil
CS19290A2
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1991-07-16
Method of 2,3-diarylquinoxalines preparation
CS719788A1
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1990-09-12
Substituted 1,1,3-trichloro-3-phenylpropanes and method of their preparation
RO105696B1
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1992-11-30
Difenilacetati de n-hidroxietilenpiridiniu-2,4,6-trisubstituiti perclorati, si procedeu pentru prepararea lor
RO103936B1
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1992-05-08
Aminoacetyl-oxohexyl derivative of 1,3-dimethyl-xanthin and preparation method
EP0548640A3
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1993-09-29
Process for the preparation of 2,4,5-triamino-6-halopyrimidines and 2-amino-6-halopurines
PL285488A1
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1991-12-16
Method of obtaining 16ÿ-methylhydrocortisone and its 17 and 17, 21-diacyl derivatives
CS811588A1
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1990-03-14
2,2,6,6-tetramethyl-4-piperidyliden-acetone and method of its preparation
CS29090A2
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1991-08-13
//5-substituted-4-oxo-4h-pyran-2-yl/methyl-chloroacetates and method of their preparation
CS9000069A2
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1991-07-16
3-azidomethyl-4-hydroxyphenylalkylketones and method of their preparation
PL284237A1
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1991-09-23
Method of obtaining 1,3-diphenyloxypropanol-2