Are there alternatives to (2S)-1-(6-Amino-9H-purin-9-yl)-2-propanol (CAS: 14047-27-9) in synthesis?

For synthesis, there are several alternatives to (2S)-1-(6-Amino-9H-purin-9-yl)-2-propanol (CAS: 14047-27-9), such as (2R)-1-(6-Amino-9H-purin-9-yl)-2-propanol and related purine derivatives. These alternatives can be used depending on the specific requirements of the synthesis, including reactivity and desired properties. Common alternative reagents include purine derivatives and their isomers, which may offer similar functionality with different structural features.