The discovery of mutant or fusion kinases that drive oncogenesis, and the subsequent approval of specific inhibitors for these enzymes, has been instrumental in the management of some cancers. However, acquired resistance remains a significant problem in the clinic, limiting the long-term effectiveness of most of these drugs. Herein is demonstrated a strategy to overcome this resistance through drug-induced MEK cleavage (via direct procaspase-3 activation) combined with targeted kinase inhibition. This combination effect is shown to be general across diverse tumor histologies (melanoma, lung cancer, and leukemia) and driver mutations (mutant BRAF or EGFR, fusion kinases EML4-ALK and BCR-ABL). Caspase-3-mediated degradation of MEK kinases results in sustained pathway inhibition and substantially delayed or eliminated resistance in cancer cells in a manner superior to combinations with MEK inhibitors. These data suggest the generality of drug-mediated MEK kinase cleavage as a therapeutic strategy to prevent resistance to targeted anticancer therapies.

Provided are compounds that inhibit ferroptosis activity, or modulate or inhibit a disease associated with ferroptosis dysregulation, such as neuropathy, ischemia reperfusion injury, acute kidney failure and cancer, including corresponding sulfonamides, and pharmaceutically acceptable salts, hydrates and stereoisomers thereof. The compounds are employed in pharmaceutical compositions, and methods of making and use, including treating a person in need thereof with an effective amount of the compound or composition, and detecting a resultant improvement in the person's health or condition.

The present inventors found cyclic peptide compounds that interact with Ras, and non-natural amino acids useful for the production of the cyclic peptide compounds. The inventors also found that the cyclic peptide compounds inhibit the binding between Ras and SOS. In addition, the inventors found specific non-natural amino acids contained in the cyclic peptide compounds and methods for production thereof.

The present inventors found cyclic peptide compounds that interact with Ras, and non-natural amino acids useful for the production of the cyclic peptide compounds. The inventors also found that the cyclic peptide compounds inhibit the binding between Ras and SOS. In addition, the inventors found specific non-natural amino acids contained in the cyclic peptide compounds and methods for production thereof.

Disclosed herein are methods for preparing [(2S,3R)-N-[(2S)-3-(cyclopent-1-en-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[(2S)-2-[2-(morpholin-4-yl)acetamido]propanamido]propanamide (compound “G”):

##STR00001##

and precursors thereof.

Disclosed herein are methods for preparing [(2S,3R)-N-[(2S)-3-(cyclopent-1-en-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[(2S)-2-[2-(morpholin-4-yl)acetamido]propanamido]propanamide (compound “G”):

##STR00001##

and precursors thereof.

A lipid membrane structure includes, as lipid components, a lipid compound represented by Formula (I):

##STR00001##

[in the formula, a represents an integer of 3 to 5; b represents an integer of 0 or 1; R.sup.1 and R.sup.2 each independently represents a linear hydrocarbon group that may have —CO—O—; and X represents a 5- to 7-membered non-aromatic heterocyclic group or a group represented by Formula (B) (in the formula, d represents an integer of 0 to 3, and R.sup.3 and R.sup.4 each independently represents a C.sub.1-4 alkyl group or a C.sub.2-4 alkenyl group, where, R.sup.3 and R.sup.4 may be bonded to each other to form a 5- to 7-membered non-aromatic heterocycle (where, one or two C.sub.1-4 alkyl groups or C.sub.2-4 alkenyl groups may be substituted on the ring)].

Compounds of formula (I) wherein: X is —O—, —S(O).sub.r—, —CH.sub.2—, or —NR—, wherein r is 0, 1, or 2; X.sup.1, X.sup.2, and X.sup.5 are each independently CR.sup.7 or N; one of X.sup.3 or X.sup.4 is C and is attached by a single bond to -L-, and the other is CR.sup.7 or N, provided that no more than three of X.sup.1, X.sup.2, X.sup.3, X or X.sup.5 are N; Ring A is monocyclic C.sub.5-6scycloalkyl or a 5- to 6-membered monocyclic heterocyclyl comprising from 1 to 5 heteroatoms independently selected from N, S, or O; wherein Ring A is further optionally substituted with from 1 to 3 R.sup.4; provided that Ring A is not morpholinyl, thiomorpholinyl or tetrahydro-2H-pyranyl; L is a bond, —O—, —NR—, —S(O).sub.n—, —CH.sub.2—, or —C(O)—, wherein n is 0, 1, or 2; 1 2 L.sup.1 is an C.sub.1-8alkylene, C.sub.3-scycloalkylene, —CH.sub.2-L.sup.2-, or a 3- to 8-membered heterocyclylene comprising 1 to 5; R.sup.1 is C.sub.6-20alkyl or a monocyclic C.sub.3-8cycloalkyl; wherein said C.sub.3-8cycloalkyl is substituted with at least one R.sup.6 and may be optionally substituted with from 1 to 5 additional R.sup.6 substituents, wherein R.sup.6 for each occurrence is independently selected; and R.sup.2 is —C(O)OR.sup.3, —C(O)N(R.sup.3)—S(O).sub.2R.sup.3, —S(O).sub.2OR.sup.3, —C(O)NHC(O)R.sup.3, —Si(O)OH, —B(OH).sub.2, —N(R.sup.3)S(O).sub.2R.sup.3, —S(O).sub.2N(R.sup.3).sub.2, —O—P(O)(OR.sup.3).sub.2, or —P(O)(OR.sup.3).sub.2, —CN, —S(O).sub.2NHC(O)R.sup.3, —C(O)NHS(O).sub.2R3, —C(O)NHOH, —C(O)NHCN, —CH(CF.sub.3)OH, —C(CF.sub.3).sub.2OH, or a selected heteroaryl or heterocyclyl; and pharmaceutically acceptable salts thereof, can modulate the activity of one or more SIP receptors and/or the activity of autotaxin (ATX). ##STR00001##

Compounds of formula (I) wherein: X is —O—, —S(O).sub.r—, —CH.sub.2—, or —NR—, wherein r is 0, 1, or 2; X.sup.1, X.sup.2, and X.sup.5 are each independently CR.sup.7 or N; one of X.sup.3 or X.sup.4 is C and is attached by a single bond to -L-, and the other is CR.sup.7 or N, provided that no more than three of X.sup.1, X.sup.2, X.sup.3, X or X.sup.5 are N; Ring A is monocyclic C.sub.5-6scycloalkyl or a 5- to 6-membered monocyclic heterocyclyl comprising from 1 to 5 heteroatoms independently selected from N, S, or O; wherein Ring A is further optionally substituted with from 1 to 3 R.sup.4; provided that Ring A is not morpholinyl, thiomorpholinyl or tetrahydro-2H-pyranyl; L is a bond, —O—, —NR—, —S(O).sub.n—, —CH.sub.2—, or —C(O)—, wherein n is 0, 1, or 2; 1 2 L.sup.1 is an C.sub.1-8alkylene, C.sub.3-scycloalkylene, —CH.sub.2-L.sup.2-, or a 3- to 8-membered heterocyclylene comprising 1 to 5; R.sup.1 is C.sub.6-20alkyl or a monocyclic C.sub.3-8cycloalkyl; wherein said C.sub.3-8cycloalkyl is substituted with at least one R.sup.6 and may be optionally substituted with from 1 to 5 additional R.sup.6 substituents, wherein R.sup.6 for each occurrence is independently selected; and R.sup.2 is —C(O)OR.sup.3, —C(O)N(R.sup.3)—S(O).sub.2R.sup.3, —S(O).sub.2OR.sup.3, —C(O)NHC(O)R.sup.3, —Si(O)OH, —B(OH).sub.2, —N(R.sup.3)S(O).sub.2R.sup.3, —S(O).sub.2N(R.sup.3).sub.2, —O—P(O)(OR.sup.3).sub.2, or —P(O)(OR.sup.3).sub.2, —CN, —S(O).sub.2NHC(O)R.sup.3, —C(O)NHS(O).sub.2R3, —C(O)NHOH, —C(O)NHCN, —CH(CF.sub.3)OH, —C(CF.sub.3).sub.2OH, or a selected heteroaryl or heterocyclyl; and pharmaceutically acceptable salts thereof, can modulate the activity of one or more SIP receptors and/or the activity of autotaxin (ATX). ##STR00001##

The present invention provides compounds for modulating protein kinase enzymatic activity for modulating cellular activities such as proliferation, differentiation, programmed cell death, migration and chemoinvasion. More specifically, the invention provides quinazolines and quinolines which inhibit, regulate and/or modulate kinase receptor, particularly c-Met, KDR, c-Kit, flt-3 and flt-4, signal transduction pathways related to the changes in cellular activities as mentioned above, compositions which contain these compounds, and methods of using them to treat kinase-dependent diseases and conditions. The present invention also provides methods for making compounds as mentioned above, and compositions which contain these compounds.