Oxalinast was developed as an antiasthmatic agent. Information about the current use of this compound is not available.

Fluthiacet-methyl, an isourazole herbicide is applied to actively growing weeds in soybeans to control annual broadleaf weeds. Fluthiacet-methyl induced the accumulation of protoporphyrin IX in cotyledons of cotton and inhibited chlorophyll biosynthesis in cotyledons of velvetleaf and cotton.

Tiaprost is a synthetic analog of prostaglandin F2α (PGF2α) patented by Hoechst A.-G. as an estrus-synchronizing agent for veterinary medicine. Tiaprost treatment reduced the interval from calving to conception in multiparous cows, but it delayed conception and reduced the conception rate in primiparous cows. Treatment with tiaprost impaired reproductive performance in primiparous cows

Timobesone is a topical corticosteroid and thiol ester derivative with anti-inflammatory activity.

Tubulozole is a stereospecific microtubule inhibitor. Structurally it is related to the benzimidazole carbamates by its carbamate moiety, which is essential for the activity of both types of compounds. The compound exists as a cis-isomer called tubulozole-C (R 46 846) and as a trans-isomer called tubulozole-T. The cis-isomer appears to be a potent and specific microtubule inhibitor, the trans-isomer being inactive at 100 times higher concentrations. At low concentrations, both isomers of tubulozole (C, T) inhibit Plasmodium falciparum but only tubulozole C inhibits mammalian cells. Since tubulozole C prevents polymerization of mammalian tubulin whereas tubulozole T does not, the antimalarial action of tubulozoles may not involve microtubules. Tubulozole-C, a new synthetic anticancer drug, interfered with the structure and function of microtubules in both interphase and mitotic cells. The activity of Tubulozole-C in experimental tumor systems can be explained partly by a direct antimitotic effect and partly by the disintegration of the normal subcellular organization of the nondividing cells. At concentrations which affect the microtubule system, tubulozole-C arrested directional migration of transformed cells and malignant invasion in a three-dimensional organ culture system. Investigations in vivo show that malignant L1210 leukemia cells are more susceptible to the antimicrotubular effect of tubulozole-C than are the normal leukocytes of the host. The trans-isomer of tubulozole (tubulozole-T, R 48 265), which has no antitumor activity in vivo, did not affect the microtubule system of cells in vitro or their capacity for directional migration or for malignant invasion.

Tropanserin (MDL 72422) is a potent and selective 5-HT3 receptor antagonist. It was investigated as a drug for the treatment of migraine. MDL 72222 was shown to be an effective antimigraine agent in a double-blind placebo-controlled study.

Pfizer was developing UK-396,082, an imidazole-propionic acid, as an oral treatment for thrombosis and pulmonary fibrosis. UK-396,082 is a potent and selective inhibitor of activated thrombin-activatable fibrinolysis inhibitor (activated TAFI; TAFIa) with Ki of 10 nM. UK-396,082 displays excellent selectivity over plasma carboxypeptidase N (>1,000-fold); exhibits antithrombotic efficacy in a rabbit model of venous thrombosis, yet has no effect on surgical bleeding in the rabbit; possesses excellent preclinical and clinical pharmacokinetic profile. UK-396,082 showed potential for the treatment of thrombosis and other fibrin-dependent diseases in humans, however its development was discontinued.

Streptoniazid is a streptomycin derivative patented by Societe des usines chimiques de Rhone-Poulenc as antibiotic effective against tuberculosis.