The present disclosure relates to compounds of formulas (A) and (I), pharmaceutically acceptable salts thereof, and solvates of any of the foregoing, pharmaceutical compositions comprising the same, methods of preparing the same, intermediate compounds useful for preparing the same, and methods for treating or prophylaxis of diseases, in particular cancer, such as colorectal cancer, using the same.

##STR00001##

The invention provides a compound of Formula I:

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or a pharmaceutically acceptable salt thereof as described herein. The invention also provides pharmaceutical compositions comprising a compound of Formula I, processes for preparing compounds of Formula I, therapeutic methods for treating the proliferation of the HIV virus, treating AIDS or delaying the onset of AIDS symptoms in a mammal using compounds of Formula I.

The invention provides a compound of Formula I:

##STR00001##

or a pharmaceutically acceptable salt thereof as described herein. The invention also provides pharmaceutical compositions comprising a compound of Formula I, processes for preparing compounds of Formula I, therapeutic methods for treating the proliferation of the HIV virus, treating AIDS or delaying the onset of AIDS symptoms in a mammal using compounds of Formula I.

The present invention relates to para-amino-benzyl linker compounds useful for linking drug moieties to antibodies, to linker-drug compounds in which said para-amino-benzyl linker compounds are covalently linked to drug moieties, and to antibody-drug conjugates in which said para-amino-benzyl linker compounds are covalently linked to drug wherein said drug is enzymatically cleaved from the conjugate at a particular cell or tissue type targeted by said antibody.

There are provided bivalent compounds and conjugates thereof, the conjugates comprising a bivalent compound, a targeting moiety, and a bioactive agent, as well as pharmaceutical compositions and methods of use of the conjugate for the treatment, inhibition, or prevention of diseases and disorders which are therapeutic targets of the bioactive agent.

##STR00001##

There are provided bivalent compounds and conjugates thereof, the conjugates comprising a bivalent compound, a targeting moiety, and a bioactive agent, as well as pharmaceutical compositions and methods of use of the conjugate for the treatment, inhibition, or prevention of diseases and disorders which are therapeutic targets of the bioactive agent.

##STR00001##

Disclosed herein, inter alia, are inhibitors of alpha 2 beta 1 integrin and methods of using the same.

The present invention provides .sup.18F-labeled amino acids or derivatives thereof having formula (I) and methods of making same, which can be suitable for PET imaging: ##STR00001##

The present invention provides .sup.18F-labeled amino acids or derivatives thereof having formula (I) and methods of making same, which can be suitable for PET imaging: ##STR00001##

The invention discussed in this application relates to hydroxamic acid-based compounds that are useful as imaging and therapeutic agents when bound to an appropriate metal centre, particularly for the imaging of tumours.