Provided herein are an indene compound, e.g., a compound of Formula (I), and a pharmaceutical composition thereof. Also provided herein is a method of their use for treating, preventing, or ameliorating one or more symptoms of a fibrotic disease.

##STR00001##

In one aspect, the invention relates to compounds having the formula: ##STR00001##
where R.sup.1-R.sup.6, a, b, and Z are as defined in the specification, or a pharmaceutically acceptable salt thereof. These compounds have neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising such compounds; methods of using such compounds; and processes and intermediates for preparing such compounds.

In one aspect, the invention relates to compounds having the formula: ##STR00001##
where R.sup.1-R.sup.6, a, b, and Z are as defined in the specification, or a pharmaceutically acceptable salt thereof. These compounds have neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising such compounds; methods of using such compounds; and processes and intermediates for preparing such compounds.

In one aspect, the invention relates to compounds having the formula:

##STR00001## where R.sup.1-R.sup.6, a, b, and Z are as defined in the specification, or a pharmaceutically acceptable salt thereof. These compounds have neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising such compounds; methods of using such compounds; and processes and intermediates for preparing such compounds.

In one aspect, the invention relates to compounds having the formula:

##STR00001## where R.sup.1-R.sup.6, a, b, and Z are as defined in the specification, or a pharmaceutically acceptable salt thereof. These compounds have neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising such compounds; methods of using such compounds; and processes and intermediates for preparing such compounds.

The present application provides a compound of formula II and a method for preparing a compound of formula I, i.e., 2-iso-propyl-4-methylpyridin-3-amine by using the same. The compound of formula I can be applied to synthesis of KRAS inhibitor drugs. The raw materials involved in the method of the present application are easy to obtain and low in price, operation is easy and convenient, economization and environmental protection are achieved, and industrial production is facilitated.

##STR00001##

The present application provides a compound of formula II and a method for preparing a compound of formula I, i.e., 2-iso-propyl-4-methylpyridin-3-amine by using the same. The compound of formula I can be applied to synthesis of KRAS inhibitor drugs. The raw materials involved in the method of the present application are easy to obtain and low in price, operation is easy and convenient, economization and environmental protection are achieved, and industrial production is facilitated.

##STR00001##

The invention relates to novel hydrazide-based templates, methods of making the same, and methods of using the hydrazide-based templates as molecular scaffolds for asymmetric light driven transformations, light driven material synthesis, and biological applications. Furthermore, the present invention relates to photoinitiators, monomers, and polymers derived from biomass, together with methods and methods of using the same.

The invention relates to novel hydrazide-based templates, methods of making the same, and methods of using the hydrazide-based templates as molecular scaffolds for asymmetric light driven transformations, light driven material synthesis, and biological applications. Furthermore, the present invention relates to photoinitiators, monomers, and polymers derived from biomass, together with methods and methods of using the same.

In one aspect, the invention relates to compounds having the formula:

##STR00001##

where R.sup.1-R.sup.6, a, b, and Z are as defined in the specification, or a pharmaceutically acceptable salt thereof. These compounds have neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising such compounds; methods of using such compounds; and processes and intermediates for preparing such compounds.