Knowledge Center

Patent / Jan 01, 1975

Tetracycline derivatives

Authors:
  • Ivan Villax
Source:
GB 1463726

Doxycycline and alkali hydroxides were added to freshly prepd. metaphosphoric acid to give the following complexes (C22H24N2O8)n.(MPO3)m.(HPO3)p (M, n, m, and p given): Na, 5, 1, 5; Na, 4, 2, 4; K, 5, 1, 5. The polymetaphosphate complexes prepd. are useful as bactericides.

Also in the Knowledge Center

Related Content

Spray drying

Spray drying has become one of the most successful particle engineering technologies for improving drug bioavailability through the amorphous solid dispersion platform.

Page
Read more

History of Hovione

Hovione was established in Portugal in 1959 by Ivan Villax with his wife, Diane Villax, and two other Hungarian refugees: Nicholas de Horthy and Andrew Onody, thus forming the name HOVIONE.

Page
Read more

Nanoparticles

At Hovione we have both top-down and bottom-up technologies to produce pharmaceutical nanoparticles for oral delivery.

Page
Read more