#4380 - Refactor (getDefaultPreset.ts): Simplify

packages/ketcher-macromolecules/src/helpers/getDefaultPreset.ts

@@ -34,21 +34,21 @@ export const getDefaultPresets = (
         }),
       );
       // TODO: Do we need to check for existence? Suddenly there is `undefined`.
-      const ribose = rnaPartsMonomerLibraryItemByMonomerClassMap.get(
-        KetMonomerClass.Sugar,
-      ) as MonomerItemType;
-      const rnaBase = rnaPartsMonomerLibraryItemByMonomerClassMap.get(
+      const base = rnaPartsMonomerLibraryItemByMonomerClassMap.get(
         KetMonomerClass.Base,
       ) as MonomerItemType;
       const phosphate = rnaPartsMonomerLibraryItemByMonomerClassMap.get(
         KetMonomerClass.Phosphate,
       ) as MonomerItemType;
+      const sugar = rnaPartsMonomerLibraryItemByMonomerClassMap.get(
+        KetMonomerClass.Sugar,
+      ) as MonomerItemType;
       const result: IRnaPreset = {
-        base: { ...rnaBase, label: rnaBase.props.MonomerName },
+        base: { ...base, label: base.props.MonomerName },
         default: true,
         name: rnaPresetsTemplate.name,
         phosphate: { ...phosphate, label: phosphate.props.MonomerName },
-        sugar: { ...ribose, label: ribose.props.MonomerName },
+        sugar: { ...sugar, label: sugar.props.MonomerName },
       };
       if (!rnaPresetsTemplate.idtAliases) {
         return result;