Jack Daniels Tennessee Whiskey

Tennessee Whiskey is a straight whiskey produced in the US state of Tennessee. Whiskey produced in Tennessee is technically and legally a Bourbon and is recognised as Bourbon internationally, but Tennessee manufacturers prefer to keep their produce separate from Bourbon. To be a legal Bourbon, a whiskey has to meet the following criteria

Produced in the United States and Territories (Puerto Rico) and the District of Columbia
Made from a grain mixture that is at least 51% corn
Aged in new, charred oak containers
Distilled to no more than 160 (U.S.) proof (80% alcohol by volume)
Entered into the container for aging at no more than 125 proof (62.5% alcohol by volume)
Bottled (like other whiskeys) at 80 proof or more (40% alcohol by volume)

Apricot Liqueur

A liqueur is an alcoholic beverage made mostly from rectified neutral spirits flavoured with sugar, fruits, herbs and spices. Liqueurs are often served as aperitif or digestif or used as bitters, and some are ceremonial or have regional cultural significance.
Most liqueur recipes that date back to the medieval or early modern era tend to have secret recipes and legends following them trough centuries. Liqueurs mostly began in the laboratories of pharmacists as medicines or at homes as ways of preserving seasonal fruits, or were created by monks in their monasteries. and then took off as fragrant, flavourful liqueurs, either filtered to be clear or cloudy.
Liqueurs are created by infusing or macerating fruits and herbs in neutral grain spirit, brandy base like cognac, rum, vodka or even whisky and then filtering the infused alcohol to produce the unique sweet beverage.

Orange Curacao Liqueur

Curaçao is a liqueur flavored with the dried peel of the bitter orange laraha. It's been a popular liqueur for more than 150 years, the Dutch East India Company created this orange liqueurs by steeping orange peels in alcohol from the island of Curaçao and called it Curaçao liquor, unlike Triple Sec, Curacao has added spices and herbs to the orange and Curaçao comes in a variety of colours such as clear, orange or blue.

Blue Curaçao being the most used of them, in cocktails. Although Curacao is an orange tinted liquor, Blue Curacao is a regular Curacao dyed bright blue to give it a striking appearance, and thus is a very popular cocktail mixer, whenever a striking colour is desired.

Blue Curacao is usually around 25% ABV.

Blue Curacao is essentially Orange Liqueur tinted Blue, the colour doesn't influence the taste and thus Orange Curacao is interchangeable with Blue Curacao in recipes, if the colour is not important in the appearance.

NOTE: Blue Curacao being an Orange Flavoured Blue Liqueur, it's primary purpose in a cocktail is introducing the Orange flavour and the striking sky blue to the drink, so, if a bottle of Blue Curacao liqueur is something you are not planning to buy right now, you can manage with the Blue Curacao Syrup.
It would add the same flavour and colour profile to the cocktail, all we need to do is simply count for the alcohol absent in the syrup and account for it.

Angostura Bitters 2es

Angostura Bitters is a concentrated bitters based on gentian, herbs and spices, from the House of Angostura in Trinadad and Tobago. Note that the Angostura Bitters from the House of Angostura do not contain Angostura bark.
However, Angostura Bitters or Angobitter offered by other brands like Riemerschmid and Hemmeler, contain angostura bark, possibly to justify using the word "Angostura" in their names.