2,4,6,8-TETRACHLOROPYRIMIDO[5,4-D]PYRIMIDINE

Needle-shaped or flaky crystals. Melting point 254-258°C. Partially decomposes when heated rapidly.

Potential tyrosine kinase signal transduction inhibitor.A pyrimido[5,4-d]pyrimidine derivative used as an intermediate in the preparation of nucleoside transporter 1 inhibitors and potential modulators of the activity of antimetabolite antitumor agents.

Potential tyrosine kinase signal transduction inhibitor. A pyrimido[5,4-d]pyrimidine derivative used as an intermediate in the preparation of nucleoside transporter 1 inhibitors and potential modulators of the activity of antimetabolite antitumor agents.