RESIDUE   DRL     22
CONECT      C1A    4 C1I  H1A  H1AA H1AB
CONECT      C1I    3 C1A  N1G  N1F 
CONECT      N1G    2 C1I  C1J 
CONECT      C1J    3 N1G  C1D  C1K 
CONECT      C1D    4 C1J  C1C  H1D  H1DA
CONECT      C1C    4 C1D  S1H  H1C  H1CA
CONECT      S1H    2 C1C  C1E 
CONECT      C1E    4 S1H  C1K  H1E  H1EA
CONECT      C1K    3 C1J  C1E  C1L 
CONECT      C1L    3 C1K  O1B  N1F 
CONECT      O1B    1 C1L 
CONECT      N1F    3 C1I  C1L  HN1F
CONECT      H1A    1 C1A 
CONECT      H1AA   1 C1A 
CONECT      H1AB   1 C1A 
CONECT      H1D    1 C1D 
CONECT      H1DA   1 C1D 
CONECT      H1C    1 C1C 
CONECT      H1CA   1 C1C 
CONECT      H1E    1 C1E 
CONECT      H1EA   1 C1E 
CONECT      HN1F   1 N1F 
END   
HET    DRL             22
HETNAM     DRL 2-methyl-3,5,7,8-tetrahydro-4H-thiopyrano[4,3-d]pyrimid
HETNAM   2 DRL in-4-one
FORMUL      DRL    C8 H10 N2 O1 S1