The present disclosure relates to prodrugs, double prodrugs, derivatives and analogues of 3-(methylamino)-2-((methylamino)methyl)propane-1-thiol. The compounds of this disclosure also relate to ##STR00001##
The use of these compounds as radio— and chemo—protectors is also described.

Compounds, compositions and methods are provided for the inhibition of ENPP1. Aspects of the subject methods include contacting a sample with a ENPP1 inhibitor to inhibit cGAMP hydrolysis activity of ENPP1. In some cases, the ENPP1 inhibitor is cell impermeable. Also provided are compositions and methods for treating cancer. Aspects of the methods include administering to a subject a therapeutically effective amount of a ENPP1 inhibitor to treat the subject for cancer. In certain cases, the cancer is a solid tumor cancer. Also provided are methods of administering radiation therapy to a subject either before or after administering an ENPP1 inhibitor. The radiation therapy can be administered at a dosage and/or frequency effective to reduce radiation damage to the subject. In certain cases, the method is performed in combination with a chemotherapeutic agent, or a checkpoint inhibitor, or both.

Disclosed herein are acyclic thiol prodrugs, and pharmaceutical compositions thereof. The prodrugs and pharmaceutical compositions thereof may be used to treat or prevent medical disorders such as, for example cystinosis, cystinuria, cancer neurodegenerative disease, Parkinson's disease, Huntington's disease, malaria, nonalcoholic fatty liver disease, radiation poisoning, arsenic poisoning, radioprotection, Wilson's disease or rheumatoid arthritis.

Compounds, compositions and methods are provided for the inhibition of ENPP1. Aspects of the subject methods include contacting a sample with a ENPP1 inhibitor to inhibit cGAMP hydrolysis activity of ENPP1. In some cases, the ENPP1 inhibitor is cell impermeable. Also provided are compositions and methods for treating cancer. Aspects of the methods include administering to a subject a therapeutically effective amount of a ENPP1 inhibitor to treat the subject for cancer. In certain cases, the cancer is a solid tumor cancer. Also provided are methods of administering radiation therapy to a subject either before or after administering an ENPP1 inhibitor. The radiation therapy can be administered at a dosage and/or frequency effective to reduce radiation damage to the subject. In certain cases, the method is performed in combination with a chemotherapeutic agent, or a checkpoint inhibitor, or both.

The invention relates to the compounds or its pharmaceutical acceptable polymorphs, solvates, enantiomers, stereoisomers and hydrates thereof. The pharmaceutical compositions comprising an effective amount of compounds of formula I, formula II, formula III, formula IV and formula V and the methods for the treatment of xerostomia may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, lozenge, spray, intravenous, oral solution, buccal mucosal layer tablet, parenteral administration, syrup, or injection. Such compositions may be used to treatment of oral mucosal inflammatory, dry mouth or oral dry mouth mediated infectious diseases.

The present disclosure relates to prodrugs, double prodrugs, derivatives and analogues of 3-(methylamino)-2-((methylamino)methyl)propane-1-thiol. The compounds of this disclosure also relate to formula I:

##STR00001##

The use of these compounds as radio- and chemo-protectors is also described.

The invention relates to cleavable chemistry in general, and in particular, to tunable fluorescence using cleavable linkers present in fluorochrome-quencher conjugates.

The present disclosure relates to prodrugs, double prodrugs, derivatives and analogues of 3-(methylamino)-2-((methy-lamino)methyl)propane-1-thiol. Their use as radio- and chemo-protectors is also described.

The invention relates to phosphorous-containing compounds useful as antiwear additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, methods for making and using the same, including methods of lubricating machines and machine parts and methods of extending the useful life of elastomeric seal components of such machines.

This document relates to functionalized (e.g., mono- or bi-functional) polymers (e.g., polyethylene glycol and related polymers) as well as methods and materials for making and using such functionalized polymers.