TY  - JOUR 
T1  - Synthesis and spectroscopic characterization of 5-diaminomethylidene barbiturates
JO  - Journal of the Brazilian Chemical Society
A1  - Figueroa-Villar, José D.
A1  - Clemente, Fábio C.
A1  - Silva, Ana C. C. da
SN  - 0103-5053
UL  - 10.1590/S0103-50532001000200020
VL  - 12 
Y1  - 2001
PB  - Brasil 
ER  -