摘要:
The compounds are of the class of imidazo(2,1-b)quinazolin5(1OH)-ones, useful, for example, as bronchodilator agents. The compounds are prepared by dehydrogenation of the corresponding 2,3-dihydro-imidazo(2,1-b)quinazolin-5(1OH)-ones.
摘要:
4-Amino-5-fluoro-2-triloweralkylsilyloxypyrimidines, useful as an intermediate in the production of antibacterial and antiviral, 1- Beta -D-arabinofuranosyl-5-fluorocytosine from fluorocytosine.
摘要:
The disclosure is directed to 5-amino-2,6-substituted-7Hpyrrolo(2,3-d)pyrimidines and related compounds and to 4-halo-5pyrimidinecarbonitriles and their derivatives. The compounds have central nervous system activity as depressants. That is, they produce a calming effect in the host.
摘要:
1. A MEMBER SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAS:
3-R-PYRIMIDO(4,5-B)INDOLIUM X(-) OR 3-R-3,4-DIHYDRO-
PYRIMIDO(4,5-B)INDOLE
WHEREIN R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYL, DIALKYLAMINOALKYL, MONOHYDROXYALKYL IN WHICH ALKYL HAS 1 TO 7 CARBON ATOMS, PHENYL, ALKYLPHENYL HAVING A TOTAL OF 7 TO 10 CARBON ATOMS, N-OXIDE, CARBOXYMETHYL, CARBOXYMETHYL ANION, AND X IS CHLORO OR BROMO OR NONEXISTENT IN THE CASE OF ZWITTERIONS.
WITH AN ALKYL HALIDE WHEREIN R IS DEFINED AS ABOVE. THE INVENTION ALSO COMPRISES COMPOUNDS OF FORMULA (I) WHEREIN R'' IS SELECTED FROM THE CLASS CONSISTING OF AN ALKYL GROUP HAVING A HALOGEN SUBSTITUTION AND AN UNSATURATED ALKYL GROUP. ADDITIONALLY, THE TERM R IN THE FORMULAS ABOVE MAY BE AN ARALKYL GROUP OR AN ALKYL OR ALKOXY SUBSTITUTED ARALKYL GROUP.
摘要:
NOVEL 1H - 1,4 - BENZODIAZEPINE BEARING BETWEEN THE 1,2-POSITIONS A 5- OR 6-MEMBERED HERETOCYCLIC RING POSSESSING TWO NITROGEN ATOMS ARE DISCLOSED. THESE 1,2-HETEROCYCLIC-1H-1,4-BENZODIAZEPINES ARE USEFUL AS MUSCLE RELAXANT, ANTI-CONVULSANT AND SEDATIVE AGENTS.
摘要:
THE DISCLOSURE IS DIRECTED TO 5 - HYDROXY - 7H-PYRROLO (2,3-D)PYRIMIDINE-6-CARBOXYLIC ACID ESTERS AND TO 4-((CARBOXYALKYL)AMINO)-5-PYRIMIDINECARBOXYLIC ACID ESTERS. ALL THESE COMPOUNDS HAVE CENTRAL NERVOUS SYSTEM ACITIVITY AS DEPRESSANTS WHILE THE LATTER COMPOUNDS MAY ALSO BE USED IN THE PREPARATION OF THE FORMER COMPOUNDS.