MNtzact --SyntheslS of (-)-slnmln La, sperm attracting hotmcmc of AllcmYcea mbrro\_ m was achwved thmqh 10 steps frm I-I-per~llaldehyde 3. Fornatxm of CyCb ~~qxme rlnq was executed dlastereorlecuvely by the ~yrlm.aLm !JL\_+ mt.ramolesxlar epou& opml\*g rrnder Carefully antrolled and1t1a Sirenin la i
The total synthesis of the water mold sex hormone oogoniol
โ Scribed by Toshiaki Mase; Junji Ichita; Joseph P. Marino; Masato Koreeda
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 256 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
The water mold sex hormone oogoniol (la) has been synthesized from adrenosterone in 18 steps in 7.0% overall yield. The crucial step introduces the stereochemistry at C-15 and C-20 through a highly efficient 1,4-addition of the organocyanocuprate generated from the side chain Grignard reagent (fi) and CuCN to the steroidal 150,168-epoxy-17(20)(E)-ethylidene 2.
OH la R=H
๐ SIMILAR VOLUMES
The synthesis of all possible isomers of the female sex pheromone ofAspz&tus \* Correspondence and reprints.
The total synthesis of (-)-periplanone-B, the sex excitant pheromone of the American cockroach, ,?eripZaneta americana is accomplished starting from (+)-limonene. Periplanone-B, the extraordinarily potent sex attractant and sex excitant pheromone of the American cockroach, PeripZaneta americana, was
## Abstract A strategy suitable for the synthesis of larger peptides is proposed. It involves the following four considerations: (1) all of the sideโchain functional groups are protected by benzylโtype protective groups; (2) a waterโsoluble carbodiimide, 1โethylโ3โ(3โdimethylaminopropyl)โcarbodiimi