Now showing items 161-165 of 165
Methods for preparing 1-deoxy paclitaxels
(United States Patent and Trademark Office, 1998-04-14)
The present invention provides methods for making a novel class of 1-deoxy paclitaxel derivatives. These derivatives include 1-deoxy paclitaxel. The derivatives of the present invention are potent cytotoxic agents.
Reissert compound of bisbenzimidazole
(United States Patent and Trademark Office, 1990-12-11)
A Reissert compound of bisbenzimidazole can be formed by first reacting benzimidazole with an aliphatic diacid chloride to form bisbenzimidazole and then reacting the bisbenzimidazole with an aliphatic acid chloride and ...
Metalorganic chemical vapor deposition of ferroelectric thin films
(United States Patent and Trademark Office, 1995-07-11)
A method to produce high quality doped and undoped lead zirconate titanate (PZT) thin films by metalorganic chemical vapor deposition is disclosed. The PZT thin films with the perovskite structure were deposited on sapphire ...
Mono- and Di(functionally-substituted phenylene) semi-rigid crowns and processes for making
(United States Patent and Trademark Office, 1992-08-25)
Bis(carboalkoxy-substituted m-phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed in one step by reacting a functionalized dihydroxy aromatic compound with a dihalopolyether. In the same ...
Chemical modification of shaped hydrogels in non-aqueous medium
(United States Patent and Trademark Office, 1996-06-25)
A method is described for the chemical modification of pre-shaped hydrogels in non-aqueous medium. The conditions permit the reaction of highly expanded, porous hydrogel particles, such as spherical beads, using pseudo ...