I think that a very strict chemist might say that 1-Bu-LSD would only be a trivial abbreviation but not a technical one since the correct ones should be Ac for acetyl, Prop for propionyl and Buty for butyryl. This way there is no confusion with Pr being propyl (Probably not Pro, which too often stands for amino acid proline) and Bu being butyl...
1P-LSD is for these reasons probably also quite a trivial name, and you'd expect 1B-LSD to be consistent. But hey, 'trivial'? Who cares at the rumor stage, right?
Also I could be mistaken - technicalities, you know
Also let there be no confusing 1-Bu-LSD / 1B-LSD / 1-Buty-LSD with BU-LAD which is also discussed right about now. Interesting timing
I guess that 1-
o-toluoyl-LSD would be so long lasting because there is terrible steric hindrance for enzymes to cleave the amide, or does the aromatic function resonate and stabilize it more? I guess the former would be the explanation for differences in the whole homological series but the question is, when does it become really relevant? I mean: it's possible going from a 2 to 5 carbon straight chain isn't really *that* interesting but isobutyryl might make a hell of a lot more difference (in duration - these are all expected to be pro-drugs, but kinetics can change the feel of a trip considerably I am convinced)