Provided herein are intermediates that are useful in methods for producing myeloid cell leukemia 1 protein (Mcl-1) inhibitors of Formula (I), and methods for the preparation of the myeloid cell leukemia 1 protein (Mcl-1) inhibitors using the intermediates. The compounds of formula (I) and compositions comprising them may be used, for example, in the treatment of diseases or conditions, such as cancer.