C07C 237/22 :
having nitrogen atoms of am...
C07C 237/40 :
having the nitrogen atom of...
C07C 237/42 :
having nitrogen atoms of am...
C07C 255/58 :
containing cyano groups and...
C07C 255/59 :
the carbon skeleton being f...
C07C 275/34 :
having nitrogen atoms of ur...
C07C 275/36 :
with at least one of the ox...
C07C 311/42 :
to an acyclic carbon atom o...
C07C 323/32 :
having at least one of the ...
C07C 323/36 :
the sulfur atom of the sulf...
C07C 323/44 :
X or Y being nitrogen atoms
C07C 323/60 :
with the carbon atom of at ...
C07C 381/00 :
Compounds containing carbon...
C07D 213/30 :
Oxygen atoms
C07D 213/74 :
Amino or imino radicals sub...
C07D 231/12 :
with only hydrogen atoms, h...
C07D 233/56 :
with only hydrogen atoms or...
C07D 233/64 :
with substituted hydrocarbo...
C07D 239/91 :
with aryl or aralkyl radica...
C07D 249/08 :
1,2,4-Triazoles; Hydrogenat...
C07D 251/18 :
with nitrogen atoms directl...
C07D 251/52 :
with an oxygen or sulfur at...
C07D 251/54 :
Three nitrogen atoms
C07D 263/14 :
with radicals substituted b...
C07D 263/24 :
with hydrocarbon radicals, ...
C07D 265/36 :
condensed with one six-memb...
C07D 271/06 :
1,2,4-Oxadiazoles; Hydrogen...
C07D 277/42 :
Amino or imino radicals sub...
C07D 277/74 :
Sulfur atoms substituted by...
C07D 277/82 :
Nitrogen atoms
C07D 295/155 :
with the ring nitrogen atom...
C07D 307/12 :
Radicals substituted by oxy...
C07D 307/28 :
with only hydrogen atoms, h...
C07D 311/56 :
without hydrogen atoms in p...
C07D 311/58 :
other than with oxygen or s...
C07D 333/36 :
Nitrogen atoms
C07D 333/38 :
Carbon atoms having three b...
C07D 401/04 :
directly linked by a ring-m...
C07D 401/12 :
linked by a chain containin...
C07D 403/04 :
directly linked by a ring-m...
C07D 409/12 :
linked by a chain containin...
C07D 473/40 :
with halogen atoms or perha...
C07D 487/04 :
Ortho-condensed systems
C07D 495/04 :
Ortho-condensed systems
C07D 513/04 :
Ortho-condensed systems
C07F 7/081 :
comprising at least one ato...
C07F 7/0812 :
comprising a heterocyclic ring