The present invention relates to compounds of formula (A), as further defined herein, having antiviral activity, more specifically HIV (Human Immunodeficiency Virus) replication inhibiting 5 properties. The invention also relates to pharmaceutical compositions comprising an effective amount of such compounds as active ingredients. The invention further relates to the use of such compounds, optionally combined with one or more other drugs having antiviral activity, for the treatment of animals suffering from viral infections, in particular HIV infection.