437656-17-2

Upstream product

• 622-30-0 N-benzyl hydroxylalmine 
• 324763-44-2 (2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]nonane-7-carbaldehyde 
• 324763-42-0 ((2S,3S,5R,7S,9S)-9-Isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]non-7-yl)-methanol 

Downstream Products

• 361460-39-1 N-Benzyl-N-{(1S,3S)-1-((2S,3S,5S,7S,9S)-9-isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]non-7-yl)-3-[4-methoxy-3-(3-methoxy-propoxy)-benzyl]-4-methyl-pentyl}-hydroxylamine 
• 361460-38-0 N-Benzyl-N-{(1R,3S)-1-((2S,3S,5S,7S,9S)-9-isopropyl-3,4-dimethyl-2-phenyl-1,6-dioxa-4-aza-spiro[4.4]non-7-yl)-3-[4-methoxy-3-(3-methoxy-propoxy)-benzyl]-4-methyl-pentyl}-hydroxylamine 
• 361460-41-5 (2S,4S,5R,7S)-5-Benzylamino-4-hydroxy-2-isopropyl-7-[4-methoxy-3-(3-methoxy-propoxy)-benzyl]-8-methyl-nonanoic acid (2-carbamoyl-2-methyl-propyl)-amide 
• 325154-32-3 (2S,4S,5R,7S)-5-amino-N-(2-carbamoyl-2-methylpropyl)-4-hydroxy-7-(4-methoxy-3-(3-methoxypropoxy)benzyl)-8-methyl-2-isopropylnonanamide 

Relevant academic research and scientific papers

A convergent synthesis of the renin inhibitor SPP-100 using a nitrone intermediate

The total synthesis of SPP-100 and its C-5 epimer involves the construction of the β-amino alcohol segment via addition of the Grignard reagent derived from 3-aryl-2-isopropyl-1-chloropropane to the nitrone functional group installed at C-4 of the pseudoe

Process for the preparation of aryloctanoyl amides

Compounds of formula IwhereinR1is for example 3-methoxyprop-3-yloxy, R2is for example methoxy, R3and R4are in each case for example isopropyl, and R5is H2NC(O)-[C(CH3)2]-CH2-, are obtainable by reaction of compounds of formula IV(IV) with a metal organic derivative of 1-(3-R1-4-R2-phen-1-yl)-2-R3-3-halogen propanes to form a compound of formula VI,followed by removal of the pseudoephedrine protecting group and the OH group, reaction of the resulting lactone with an amine R5-NH2and removal of protecting group Z.